Select 20 unique numbers from 1 to 66
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 40,661,170,824,914,632 (~40.7 thousand trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 98,924,644,154,748,222,207,269,559,215,325,184 (~9.8924644154748E+16 million trillion)
If order does not matter (e.g. most lottery numbers): 40,661,170,824,914,632 (~40.7 thousand trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 98,924,644,154,748,222,207,269,559,215,325,184 (~9.8924644154748E+16 million trillion)