56695891776 has 56 divisors (see below), whose sum is σ = 157903042080. Its totient is φ = 17903964672.

The previous prime is 56695891727. The next prime is 56695891781. The reversal of 56695891776 is 67719859665.

It is a self number, because there is not a number n which added to its sum of digits gives 56695891776.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7767171 + ... + 7774466.

It is an arithmetic number, because the mean of its divisors is an integer number (2819697180).

Almost surely, 2^56695891776 is an apocalyptic number.

It is an amenable number.

56695891776 is an abundant number, since it is smaller than the sum of its proper divisors (101207150304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56695891776 is a wasteful number, since it uses less digits than its factorization.

56695891776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15541671 (or 15541661 counting only the distinct ones).

The product of its digits is 171460800, while the sum is 69.

The spelling of 56695891776 in words is "fifty-six billion, six hundred ninety-five million, eight hundred ninety-one thousand, seven hundred seventy-six".