56158085165 has 32 divisors (see below), whose sum is σ = 83675241216. Its totient is φ = 35231616000.

The previous prime is 56158085149. The next prime is 56158085173.

It is a happy number.

56158085165 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56158085165 - 2⁴ = 56158085149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 494711 + ... + 597540.

It is an arithmetic number, because the mean of its divisors is an integer number (2614851288).

Almost surely, 2^56158085165 is an apocalyptic number.

It is an amenable number.

56158085165 is a deficient number, since it is larger than the sum of its proper divisors (27517156051).

56158085165 is a wasteful number, since it uses less digits than its factorization.

56158085165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092389.

The product of its (nonzero) digits is 1440000, while the sum is 50.

The spelling of 56158085165 in words is "fifty-six billion, one hundred fifty-eight million, eighty-five thousand, one hundred sixty-five".