56611265191 has 16 divisors (see below), whose sum is σ = 64979748288. Its totient is φ = 48856896000.

The previous prime is 56611265167. The next prime is 56611265203. The reversal of 56611265191 is 19156211665.

It is a cyclic number.

It is not a de Polignac number, because 56611265191 - 2⁷ = 56611265063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56611265591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 814840 + ... + 881581.

It is an arithmetic number, because the mean of its divisors is an integer number (4061234268).

Almost surely, 2^56611265191 is an apocalyptic number.

56611265191 is a deficient number, since it is larger than the sum of its proper divisors (8368483097).

56611265191 is a wasteful number, since it uses less digits than its factorization.

56611265191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696602.

The product of its digits is 97200, while the sum is 43.

The spelling of 56611265191 in words is "fifty-six billion, six hundred eleven million, two hundred sixty-five thousand, one hundred ninety-one".