Suppose I win the 62 EuroMillionen jackpot. Should I go to Switzerland and deposit everything there? Or stay with the bank that I have right now?
Do you need to do anything special when you receive such a huge amount of money?
"Do you need to do anything special when you receive such a huge amount of money?" YES, ABSOLUTELY!
1st: Hire a lawyer. Retain him. Preferably one who has experience with high net worth clients.
2nd: Hire a financial advisor/wealth manager. Similarly, one who has experience with high net worth clients.
3rd: Tell no one else that you won. I cannot stress this point enough.
Do these things before you even claim your prize.
Winning the lottery seems like a great thing to people who haven't won, but statistically speaking most people end up worse off. Most people, not just lottery winners, but people who come into large sums of money unexpectedly just don't know how to handle it. Hire people who do know how to handle that sort of thing and get them on your side. If you win the lottery PROTECT YOURSELF!
Go here: https://www.reddit.com/r/AskReddit/comments/24vo34/whats_the_happiest_5word_sentence_you_could_hear/chb38xf and read the top comment.
Any large bank that you trust would be happy to help you by holding the money for you.
One of the big advantages with a Swiss bank account is privacy. The names of lottery winners are public, so this advantage would not mean much to you. Swiss banks are generally very large, secure, and capable of handling large amounts of money, however, so if Switzerland isn't too inconvenient for you, it's worth considering.
You won't want to keep all of it in a bank account for long; the majority of it should be invested. It would definitely be worth paying for a trusted financial advisor to guide you through that.
Avoid the urge to swim in a pile of gold coins.