It's a pretty big amount. Do not gamble in ICOs or alts. Put full amount on serious coins like bitcoin and ethereum and just wait some years.
I think it should be better if OP buys it during in dip of bitcoin so he will get more bitcoin rather than buying right now. When bitcoin is still on its highest peak. After OP bought or invest his money into bitcoin or any other altscoins but i highly do recommend that NEVER invest your full money on altcoins. Some of the altcoins are easily going to dump their coins while leaving those investors unaware about of what happen to their invested items.
I could not agree more Sir, surely that is the best decision that he could possibly do with that kind of money. And I do agree that bitcoin is the best investment when it comes to digital assets instead of altcoins. Holding that kind of money will be safer in long term if you buy bitcoins. Also, with bitcoins being held is already profitable. You will have a win-win situation in investigation g that money.. Just do make sure that you will buy bitcoins in his highest peak. Already have a profit waiting for you.