I would pull some GTA 5 type of shit lol. Nah but I would set my family and I for life. A lot would go to animal rescues and shelters, families in need, and invest in property and stocks.
I honestly don't know. I would propably make sure that nobody knows me so I can travel the world and at least try to see every bit of it.
But why would you invest it? It's more money than you can spend in an entire life, so what sense would it make to increase the amount?