Go to a big city and get a lawyer, finacial advisor, and accountant that have expeirience dealing with that kind of money. Make sure all three are okay with working together. Take their advise. Enjoy life and (for me) do fun things that bring a smile to the not-so-lucky. If i won big money id buy a nice food truck and go around factories around lunch time offering really good food for free. Or go to walmart looking for people with kids and tell them ill buy anything they can fit into 1 cart. Id also hire a professional chef (and team) to cook a great meal for the local homeless shelter. Things like that are good for your soul and will give you a far better feeling than blowing it on toys.

Edit: id do stuff like that as much as my financial team would let me.