57751020665 has 16 divisors (see below), whose sum is σ = 75079001088. Its totient is φ = 42391528896.

The previous prime is 57751020629. The next prime is 57751020673. The reversal of 57751020665 is 56602015775.

It is a cyclic number.

It is not a de Polignac number, because 57751020665 - 2⁶ = 57751020601 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2649257 + ... + 2670966.

It is an arithmetic number, because the mean of its divisors is an integer number (4692437568).

Almost surely, 2^57751020665 is an apocalyptic number.

It is an amenable number.

57751020665 is a deficient number, since it is larger than the sum of its proper divisors (17327980423).

57751020665 is a wasteful number, since it uses less digits than its factorization.

57751020665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320408.

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 57751020665 in words is "fifty-seven billion, seven hundred fifty-one million, twenty thousand, six hundred sixty-five".