57957265665 has 128 divisors (see below), whose sum is σ = 115244236800. Its totient is φ = 27442748160.

The previous prime is 57957265643. The next prime is 57957265693. The reversal of 57957265665 is 56656275975.

It is a happy number.

57957265665 is a `hidden beast` number, since 5 + 7 + 9 + 572 + 6 + 56 + 6 + 5 = 666.

It is not a de Polignac number, because 57957265665 - 2¹⁰ = 57957264641 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9082446 + ... + 9088824.

It is an arithmetic number, because the mean of its divisors is an integer number (900345600).

Almost surely, 2^57957265665 is an apocalyptic number.

It is an amenable number.

57957265665 is a deficient number, since it is larger than the sum of its proper divisors (57286971135).

57957265665 is a wasteful number, since it uses less digits than its factorization.

57957265665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6604 (or 6598 counting only the distinct ones).

The product of its digits is 119070000, while the sum is 63.

The spelling of 57957265665 in words is "fifty-seven billion, nine hundred fifty-seven million, two hundred sixty-five thousand, six hundred sixty-five".