57664005756 has 36 divisors (see below), whose sum is σ = 156516588648. Its totient is φ = 16475430048.

The previous prime is 57664005743. The next prime is 57664005761. The reversal of 57664005756 is 65750046675.

It is a super-2 number, since 2×57664005756² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57664005699 and 57664005708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49033431 + ... + 49034606.

It is an arithmetic number, because the mean of its divisors is an integer number (4347683018).

Almost surely, 2^57664005756 is an apocalyptic number.

It is an amenable number.

57664005756 is an abundant number, since it is smaller than the sum of its proper divisors (98852582892).

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

57664005756 is a wasteful number, since it uses less digits than its factorization.

57664005756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98068058 (or 98068049 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 51.

The spelling of 57664005756 in words is "fifty-seven billion, six hundred sixty-four million, five thousand, seven hundred fifty-six".