57516112121978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Curzon number.
It is an unprimeable number.
Almost surely, 257516112121978 is an apocalyptic number.
57516112121978 is a wasteful number, since it uses less digits than its factorization.
57516112121978 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3722477.
The spelling of 57516112121978 in words is "fifty-seven trillion, five hundred sixteen billion, one hundred twelve million, one hundred twenty-one thousand, nine hundred seventy-eight".