56664337642 has 32 divisors (see below), whose sum is σ = 99005068800. Its totient is φ = 24063713520.

The previous prime is 56664337603. The next prime is 56664337669. The reversal of 56664337642 is 24673346665.

It is a self number, because there is not a number n which added to its sum of digits gives 56664337642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1280392 + ... + 1323907.

It is an arithmetic number, because the mean of its divisors is an integer number (3093908400).

Almost surely, 2^56664337642 is an apocalyptic number.

56664337642 is a deficient number, since it is larger than the sum of its proper divisors (42340731158).

56664337642 is a wasteful number, since it uses less digits than its factorization.

56664337642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604378.

The product of its digits is 13063680, while the sum is 52.

The spelling of 56664337642 in words is "fifty-six billion, six hundred sixty-four million, three hundred thirty-seven thousand, six hundred forty-two".