56440711620 has 108 divisors (see below), whose sum is σ = 181866852804. Its totient is φ = 14165498880.

The previous prime is 56440711571. The next prime is 56440711633. The reversal of 56440711620 is 2611704465.

56440711620 is a `hidden beast` number, since 5 + 644 + 0 + 7 + 1 + 1 + 6 + 2 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 8182287936 + 48258423684 = 90456^2 + 219678^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 490471 + ... + 594510.

Almost surely, 2^56440711620 is an apocalyptic number.

It is an amenable number.

56440711620 is an abundant number, since it is smaller than the sum of its proper divisors (125426141184).

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

56440711620 is a wasteful number, since it uses less digits than its factorization.

56440711620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085030 (or 1085008 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 56440711620 in words is "fifty-six billion, four hundred forty million, seven hundred eleven thousand, six hundred twenty".