Retirement is not enough.
They say there are no stupid questions. They are wrong.
/win
How about for all of her descendants, into perpetuity? Lump-sum payout, after taxes, leaves her with $300M. Invest it, withdraw just 3%=$9M every year. Even allowing for $75,000 per year in tuition and living expenses, that’s enough to send 120 kids to college every year.
Good Lord. You are serious, aren’t you?
It probably wouldn’t take more than 3 or 4 months to set up a charitable foundation, hire a board, and begin helping whatever social group you planned on serving. And with that kind of funding, properly invested, it could continue to help people for many years into the future.
And this lovely mature woman to whom you so snottily refer would still have enough money to spoil herself and her grandkids for that 2.7 years.
Getting old is expensive. My grandmother is 97 and has been in independent living and now assisted living for close to 15 years.
Independent living (an apartment, food service, transportation, activities) ran around $22k per year and you could count on an increase of about 3-4% every year.
Assisted living, which is similar to independent living but adds much more medical support, runs closer to $50k per year.
Granted, $1.3 billion PowerBall winnings would be overkill, but little old ladies worry about supporting themselves, too. They don’t want to be a burden on the family.
She probably figures people will finally start calling her and inviting her to go places with them. Don’t ask me how I came to this idea.
So she can wave all that cash in your face and cackle “Neener, neener, neener!”. Mabel gots a mean streak.
I’m 77 and I’m in the pool. I think I can do more good in the world with a billion dollars, than the US Defense Department has done with its last trillion. So I look forward to the opportunity to try. And I don’t care if I squander it all in the first five years – I don’t have that to worry about.
I’m 75 and I damn sure bought a ticket—didn’t win a nickel but I had plans to make my three nieces and their children happy and secure. Two things I’ve never been.
Even though I recognise it is a bit of a dumb thought, I can’t deny I haven’t wondered the same as the OP myself on occasion.
A big win is wasted on a 20 year old, who doesn’t appreciate the value of money. And it’s wasted on an 80 year old, who might have five years left to use it. The ideal winner is someone in their 40s, who has lived through the occasional hardship, and who still has 30 or 40 years left to live it up.
On the other hand, buying a lottery ticket isn’t about the big win, as even getting one of the lower divisions of a few thousand dollars can make a difference, where the odds are a little better. Nobody would begrudge anybody winning that, I hope.
If my dad had won a jackpot like that at 80 he would have had 7 more years to spend it before passing away.
I had a friend who lived to be 102 - if she had won at 80 and taken the annuity option she would have outlived it.
Not everyone dies on schedule.
Even if they do die on schedule, the average remaining life for an 80 year old woman is more like nine or ten years, not 2.7 or five.
This made me LOL. I need therapy. 
Many people are “giving type people” and do not only think of themselves. Selfish people can not comprehend this.
So to answer your question, give it away!