56655661161659 has 48 divisors (see below), whose sum is σ = 67352778806976. Its totient is φ = 47505056256000.

The previous prime is 56655661161607. The next prime is 56655661161683. The reversal of 56655661161659 is 95616116655665.

It is a de Polignac number, because none of the positive numbers 2^k-56655661161659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56655661161059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 403854362 + ... + 403994624.

It is an arithmetic number, because the mean of its divisors is an integer number (1403182891812).

Almost surely, 2^{56655661161659} is an apocalyptic number.

56655661161659 is a deficient number, since it is larger than the sum of its proper divisors (10697117645317).

56655661161659 is a wasteful number, since it uses less digits than its factorization.

56655661161659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141076 (or 141069 counting only the distinct ones).

The product of its digits is 262440000, while the sum is 68.

The spelling of 56655661161659 in words is "fifty-six trillion, six hundred fifty-five billion, six hundred sixty-one million, one hundred sixty-one thousand, six hundred fifty-nine".