Select 66 unique numbers from 1 to 660
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 78,236,929,218,330,728,554,034,831,233,380,472,392,455,797,357,955,864,058,966,809,518,991,261,889,611,805,257,107,505,152 (~7.8236929218331E+73 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 42,587,876,468,958,462,810,711,661,731,547,383,331,726,277,257,265,676,247,804,303,723,104,599,706,047,514,393,974,287,902,810,359,039,496,050,777,161,316,878,251,852,149,462,960,863,860,399,485,651,525,848,171,848,996,622,386,887,556,757,192,704 (~4.2587876468958E+166 million trillion)
If order does not matter (e.g. most lottery numbers): 78,236,929,218,330,728,554,034,831,233,380,472,392,455,797,357,955,864,058,966,809,518,991,261,889,611,805,257,107,505,152 (~7.8236929218331E+73 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 42,587,876,468,958,462,810,711,661,731,547,383,331,726,277,257,265,676,247,804,303,723,104,599,706,047,514,393,974,287,902,810,359,039,496,050,777,161,316,878,251,852,149,462,960,863,860,399,485,651,525,848,171,848,996,622,386,887,556,757,192,704 (~4.2587876468958E+166 million trillion)