It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-57516112121173 is a prime.
It is a congruent number.
Almost surely, 257516112121173 is an apocalyptic number.
It is an amenable number.
57516112121173 is an equidigital number, since it uses as much as digits as its factorization.
57516112121173 is an evil number, because the sum of its binary digits is even.
The spelling of 57516112121173 in words is "fifty-seven trillion, five hundred sixteen billion, one hundred twelve million, one hundred twenty-one thousand, one hundred seventy-three".