56445723568 has 40 divisors (see below), whose sum is σ = 117813726800. Its totient is φ = 26043565824.

The previous prime is 56445723463. The next prime is 56445723599. The reversal of 56445723568 is 86532754465.

It is a super-2 number, since 2×56445723568² (a number of 22 digits) contains 22 as substring.

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, 636238 + ... + 719506.

It is an arithmetic number, because the mean of its divisors is an integer number (2945343170).

Almost surely, 2^56445723568 is an apocalyptic number.

It is an amenable number.

56445723568 is an abundant number, since it is smaller than the sum of its proper divisors (61368003232).

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

56445723568 is a wasteful number, since it uses less digits than its factorization.

56445723568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86549 (or 86543 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 55.

The spelling of 56445723568 in words is "fifty-six billion, four hundred forty-five million, seven hundred twenty-three thousand, five hundred sixty-eight".