I wouldn't quit my job. I like what I do. I'd just have a little more fun doing it.
I'm guessing for the instant payoff, you'd have to have half the money taken out initially. That would bring the amount down to $163 millon. Then half of that payment would go to taxes, leaving you with $82 million. I'd give $32 million of that to my church leaving me with $50 million. Then I'd give another $20 million of that or so to charity, leaving me with $30 million. I'd use about $5 million of that to buy some things that I could use to make myself more secure in life (and go on a few more vacations) and I suppose that I would have invested the rest.