57521664576 has 168 divisors, whose sum is σ = 175734658944. Its totient is φ = 17926041600.

The previous prime is 57521664479. The next prime is 57521664581. The reversal of 57521664576 is 67546612575.

It is a happy number.

57521664576 is a `hidden beast` number, since 5 + 7 + 5 + 2 + 1 + 6 + 64 + 576 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1459141 + ... + 1498043.

Almost surely, 2^57521664576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57521664576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87867329472).

57521664576 is an abundant number, since it is smaller than the sum of its proper divisors (118212994368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57521664576 is a wasteful number, since it uses less digits than its factorization.

57521664576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39089 (or 39076 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 54.

The spelling of 57521664576 in words is "fifty-seven billion, five hundred twenty-one million, six hundred sixty-four thousand, five hundred seventy-six".