56722620817460 has 48 divisors (see below), whose sum is σ = 128281475495376. Its totient is φ = 20943559468032.

The previous prime is 56722620817409. The next prime is 56722620817477. The reversal of 56722620817460 is 6471802622765.

It can be written as a sum of positive squares in 8 ways, for example, as 794419255204 + 55928201562256 = 891302^2 + 7478516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56722620817396 and 56722620817405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32084522 + ... + 33806238.

It is an arithmetic number, because the mean of its divisors is an integer number (2672530739487).

Almost surely, 2^{56722620817460} is an apocalyptic number.

It is an amenable number.

56722620817460 is an abundant number, since it is smaller than the sum of its proper divisors (71558854677916).

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

56722620817460 is a wasteful number, since it uses less digits than its factorization.

56722620817460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848452 (or 1848450 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 56722620817460 in words is "fifty-six trillion, seven hundred twenty-two billion, six hundred twenty million, eight hundred seventeen thousand, four hundred sixty".