56656542311 has 6 divisors (see below), whose sum is σ = 60185323800. Its totient is φ = 53323804256.

The previous prime is 56656542223. The next prime is 56656542323. The reversal of 56656542311 is 11324565665.

It is a de Polignac number, because none of the positive numbers 2^k-56656542311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56656542391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98021411 + ... + 98021988.

It is an arithmetic number, because the mean of its divisors is an integer number (10030887300).

Almost surely, 2^56656542311 is an apocalyptic number.

56656542311 is a deficient number, since it is larger than the sum of its proper divisors (3528781489).

56656542311 is a wasteful number, since it uses less digits than its factorization.

56656542311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196043433 (or 196043416 counting only the distinct ones).

The product of its digits is 648000, while the sum is 44.

The spelling of 56656542311 in words is "fifty-six billion, six hundred fifty-six million, five hundred forty-two thousand, three hundred eleven".