57660574091 has 4 divisors (see below), whose sum is σ = 58308445800. Its totient is φ = 57012702384.

The previous prime is 57660574087. The next prime is 57660574099. The reversal of 57660574091 is 19047506675.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57660574091 - 2² = 57660574087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57660574099) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 323935721 + ... + 323935898.

It is an arithmetic number, because the mean of its divisors is an integer number (14577111450).

Almost surely, 2^57660574091 is an apocalyptic number.

57660574091 is a deficient number, since it is larger than the sum of its proper divisors (647871709).

57660574091 is an equidigital number, since it uses as much as digits as its factorization.

57660574091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647871708.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 57660574091 in words is "fifty-seven billion, six hundred sixty million, five hundred seventy-four thousand, ninety-one".