Question: how many possible combinations of a 17x17 rubik's cube?
Answer: The original 3x3x3 Rubik's cube has 43 252 003 274 489 856 000 combinations, or 43 quintillion. Again, as pointed out on this website's main page, this is a manageably imaginable number. It's a little less than the square of the earth's population, for example.