56958158656 has 56 divisors (see below), whose sum is σ = 135971564480. Its totient is φ = 23125865472.

The previous prime is 56958158581. The next prime is 56958158659. The reversal of 56958158656 is 65685185965.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-3 number, since 3×56958158656³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56958158659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3337245 + ... + 3354268.

Almost surely, 2^56958158656 is an apocalyptic number.

56958158656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56958158656 is an abundant number, since it is smaller than the sum of its proper divisors (79013405824).

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

56958158656 is a wasteful number, since it uses less digits than its factorization.

56958158656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691551 (or 6691541 counting only the distinct ones).

The product of its digits is 77760000, while the sum is 64.

The spelling of 56958158656 in words is "fifty-six billion, nine hundred fifty-eight million, one hundred fifty-eight thousand, six hundred fifty-six".