The old saying was with interest your money doubled every 7 years....
So lets say you put 100m away and it doubles every 10 years would still have 800m in 30 years and still have 128m to spend and give away
You'll need to get 7% to double every 10 years..... after all the fees the brokers, mutual funds, etc add on. Not as easy as most people believe.
The first thing I'd do is set up auto pay on a credit card and disappear for 6-12 months, probably traveling the world. Hopefully, (doubtfully) things might cool down a little by then.
Then I'd purchase a home in a couple places I'd like to live and set aside some money to fund an annuity to cover the expenses for those properties.
Finally, I'd set up a foundation with just a few close family members. I'd proportion the voting rights such that I'd never be completely out-voted (tied, but not out-voted). I'd pay everyone, including myself, a good salary and meet to decide how to spend/invest the money.
Creating the foundation would provide me the cover to avoid having to personally reject every old friend, distant relative and every other person trying to separate me from my new-found wealth. Any/all requests for money would not be be up to me; they'd have to be approved by the foundation.