56660803177 has 4 divisors (see below), whose sum is σ = 61811785296. Its totient is φ = 51509821060.

The previous prime is 56660803159. The next prime is 56660803187. The reversal of 56660803177 is 77130806665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56660803177 - 2⁷ = 56660803049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56660803177.

It is not an unprimeable number, because it can be changed into a prime (56660803187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2575491043 + ... + 2575491064.

It is an arithmetic number, because the mean of its divisors is an integer number (15452946324).

Almost surely, 2^56660803177 is an apocalyptic number.

It is an amenable number.

56660803177 is a deficient number, since it is larger than the sum of its proper divisors (5150982119).

56660803177 is a wasteful number, since it uses less digits than its factorization.

56660803177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150982118.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 56660803177 in words is "fifty-six billion, six hundred sixty million, eight hundred three thousand, one hundred seventy-seven".