If I won that type of money i'd go travelling, see all the diff parts of the world that i'd like to and holiday it up for as long as I pleased. Volunteering to help out some households/communities along the way too.
I always liked the idea of buying a vw hippie van and moving around from place to place while living in it, so i'd probably do that for a while, but ultimately, i'd like to learn how to live sustainably off the land and not have to rely on money. Owning a nice house with a large patch of land to have some animals and grow food to support me and my future family would be ideal, and also a green house to grow high grade weed
So in a way, i'd be using the money to help me get out of the money system.