56662426665 has 128 divisors (see below), whose sum is σ = 112281845760. Its totient is φ = 26923104000.

The previous prime is 56662426663. The next prime is 56662426673.

56662426665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56662426665 - 2¹ = 56662426663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56662426663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 24100240 + ... + 24102590.

It is an arithmetic number, because the mean of its divisors is an integer number (877201920).

Almost surely, 2^56662426665 is an apocalyptic number.

It is an amenable number.

56662426665 is a deficient number, since it is larger than the sum of its proper divisors (55619419095).

56662426665 is a wasteful number, since it uses less digits than its factorization.

56662426665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852 (or 2846 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

The spelling of 56662426665 in words is "fifty-six billion, six hundred sixty-two million, four hundred twenty-six thousand, six hundred sixty-five".