56986398665584 has 10 divisors (see below), whose sum is σ = 110411147414600. Its totient is φ = 28493199332784.

The previous prime is 56986398665569. The next prime is 56986398665587. The reversal of 56986398665584 is 48556689368965.

It is a super-2 number, since 2×56986398665584² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56986398665495 and 56986398665504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56986398665587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780824958284 + ... + 1780824958315.

It is an arithmetic number, because the mean of its divisors is an integer number (11041114741460).

Almost surely, 2^{56986398665584} is an apocalyptic number.

It is an amenable number.

56986398665584 is a deficient number, since it is larger than the sum of its proper divisors (53424748749016).

56986398665584 is a wasteful number, since it uses less digits than its factorization.

56986398665584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561649916607 (or 3561649916601 counting only the distinct ones).

The product of its digits is 80621568000, while the sum is 88.

The spelling of 56986398665584 in words is "fifty-six trillion, nine hundred eighty-six billion, three hundred ninety-eight million, six hundred sixty-five thousand, five hundred eighty-four".