56642224665 has 16 divisors (see below), whose sum is σ = 97598910528. Its totient is φ = 27885402816.

The previous prime is 56642224643. The next prime is 56642224687.

56642224665 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (56642224643) and next prime (56642224687).

It is not a de Polignac number, because 56642224665 - 2⁶ = 56642224601 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145236279 + ... + 145236668.

It is an arithmetic number, because the mean of its divisors is an integer number (6099931908).

Almost surely, 2^56642224665 is an apocalyptic number.

It is an amenable number.

56642224665 is a deficient number, since it is larger than the sum of its proper divisors (40956685863).

56642224665 is a wasteful number, since it uses less digits than its factorization.

56642224665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290472968.

The product of its digits is 4147200, while the sum is 48.

The spelling of 56642224665 in words is "fifty-six billion, six hundred forty-two million, two hundred twenty-four thousand, six hundred sixty-five".