56720336475656 has 32 divisors (see below), whose sum is σ = 121627343724480. Its totient is φ = 24291962520000.

The previous prime is 56720336475653. The next prime is 56720336475659. The reversal of 56720336475656 is 65657463302765.

It is an interprime number because it is at equal distance from previous prime (56720336475653) and next prime (56720336475659).

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 56720336475592 and 56720336475601.

It is not an unprimeable number, because it can be changed into a prime (56720336475653) 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, 348941195 + ... + 349103706.

It is an arithmetic number, because the mean of its divisors is an integer number (3800854491390).

Almost surely, 2^{56720336475656} is an apocalyptic number.

56720336475656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56720336475656 is an abundant number, since it is smaller than the sum of its proper divisors (64907007248824).

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

56720336475656 is a wasteful number, since it uses less digits than its factorization.

56720336475656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698046365 (or 698046361 counting only the distinct ones).

The product of its (nonzero) digits is 571536000, while the sum is 65.

The spelling of 56720336475656 in words is "fifty-six trillion, seven hundred twenty billion, three hundred thirty-six million, four hundred seventy-five thousand, six hundred fifty-six".