56145654165 has 16 divisors (see below), whose sum is σ = 89836106688. Its totient is φ = 29943328896.

The previous prime is 56145654161. The next prime is 56145654199.

56145654165 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56145654165 - 2² = 56145654161 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56145654161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646662 + ... + 728328.

It is an arithmetic number, because the mean of its divisors is an integer number (5614756668).

Almost surely, 2^56145654165 is an apocalyptic number.

It is an amenable number.

56145654165 is a deficient number, since it is larger than the sum of its proper divisors (33690452523).

56145654165 is a wasteful number, since it uses less digits than its factorization.

56145654165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127508.

The product of its digits is 2160000, while the sum is 48.

The spelling of 56145654165 in words is "fifty-six billion, one hundred forty-five million, six hundred fifty-four thousand, one hundred sixty-five".