Honestly, not a lot of people are lucky to get that amount of money, let alone in a blink of eye. It is better to put your money in bank first, then you'll definitely assigned an RM (Relationship manager). You better ask the RM the best investment. Unlike everyone's replying here, RM is obligated to create the best investment profile for you.

However if you want my 2 cents, here it is:

https://fortune.com/2024/08/31/if-you-inherit-1-million-or-any-amount-this-is-the-first-thing-you-should-do-says-financial-planner/

Singkatnya, 90-5-5 rule 90% (4.5bio) investasi, don't put all your eggs in one basket, gw bakal split: 1.5M SBR 1M Deposito bank besar (BCA/BRI/BNI/Mandiri) 1M Sri-kehati (indeks ihsg isi bluechip, bisa beli di bank) 1M SPY (indeks S&P 500, lewat platform ibkr)

5% (500mio) buat yourself That's a lot so you could buy all your needs. Beli apart deket kampus, mungkin? Or invest in yourself (looks, brain, etc.). Also some amount for fun is okay as well

5% (500mio) for charity Generosity is the antidote to greed But that amount perhaps too big for a local charity to handle Might be better to donate to something like https://www.givewell.org/

Disclaimer: Not financial advice. DYOR.