You absolutely have to have a legal and accounting team ready (We'd likely just put my BIL, and his partner/legal on full time), I wouldn't even show up to claim the prize until I had everything in place (ticket goes into a HD ziplock, and that into a small, portable fireproof safe and that into a backpack close by
). You might also want to be ready to "disappear" so to speak - which would be fine with us.
Yeah, people have no sense of this kind of money, sure, you can buy a lot of stuff, but it buys you access, whether that's schools, events, <whatever>.
Outside of a few large ticket items and/or a lot of the same expensive thing, you can't even spend this in your normal "life operations". Hell, you'd be making $20-25M a year on interest.
We'd probably move over to the river, new hurricane proof house, dock, and as much as I love cars, I wouldn't even go nuts in that capacity, there's only a few I'd like to own (and none are over-the-top as high end cars go ...), we'd get a place in NYC, and my big expense would be something like a 1-2 year old Gulfstream 5xx/6xx and a stand by flight crew service to fly out of SA to NYC or They Keys as desired.