56442390616 has 16 divisors (see below), whose sum is σ = 108081174240. Its totient is φ = 27620744160.

The previous prime is 56442390607. The next prime is 56442390733. The reversal of 56442390616 is 61609324465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75055995 + ... + 75056746.

It is an arithmetic number, because the mean of its divisors is an integer number (6755073390).

Almost surely, 2^56442390616 is an apocalyptic number.

It is an amenable number.

56442390616 is a deficient number, since it is larger than the sum of its proper divisors (51638783624).

56442390616 is a wasteful number, since it uses less digits than its factorization.

56442390616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150112794 (or 150112790 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 56442390616 in words is "fifty-six billion, four hundred forty-two million, three hundred ninety thousand, six hundred sixteen".