57570162661 has 4 divisors (see below), whose sum is σ = 62803813824. Its totient is φ = 52336511500.

The previous prime is 57570162647. The next prime is 57570162679. The reversal of 57570162661 is 16626107575.

It is a happy number.

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 not a de Polignac number, because 57570162661 - 2²⁵ = 57536608229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57570162161) 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, 2616825565 + ... + 2616825586.

It is an arithmetic number, because the mean of its divisors is an integer number (15700953456).

Almost surely, 2^57570162661 is an apocalyptic number.

It is an amenable number.

57570162661 is a deficient number, since it is larger than the sum of its proper divisors (5233651163).

57570162661 is a wasteful number, since it uses less digits than its factorization.

57570162661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5233651162.

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 57570162661 in words is "fifty-seven billion, five hundred seventy million, one hundred sixty-two thousand, six hundred sixty-one".