57660573761 has 4 divisors (see below), whose sum is σ = 65897798592. Its totient is φ = 49423348932.

The previous prime is 57660573739. The next prime is 57660573791. The reversal of 57660573761 is 16737506675.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57660573761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57660573721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4118612405 + ... + 4118612418.

It is an arithmetic number, because the mean of its divisors is an integer number (16474449648).

Almost surely, 2^57660573761 is an apocalyptic number.

It is an amenable number.

57660573761 is a deficient number, since it is larger than the sum of its proper divisors (8237224831).

57660573761 is an equidigital number, since it uses as much as digits as its factorization.

57660573761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8237224830.

The product of its (nonzero) digits is 5556600, while the sum is 53.

The spelling of 57660573761 in words is "fifty-seven billion, six hundred sixty million, five hundred seventy-three thousand, seven hundred sixty-one".