56407653660 has 48 divisors (see below), whose sum is σ = 162210123936. Its totient is φ = 14635498752.

The previous prime is 56407653649. The next prime is 56407653713. The reversal of 56407653660 is 6635670465.

It is a super-2 number, since 2×56407653660² (a number of 22 digits) contains 22 as substring.

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, 12702207 + ... + 12706646.

It is an arithmetic number, because the mean of its divisors is an integer number (3379377582).

Almost surely, 2^56407653660 is an apocalyptic number.

It is an amenable number.

56407653660 is an abundant number, since it is smaller than the sum of its proper divisors (105802470276).

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

56407653660 is a wasteful number, since it uses less digits than its factorization.

56407653660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25408902 (or 25408900 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 48.

The spelling of 56407653660 in words is "fifty-six billion, four hundred seven million, six hundred fifty-three thousand, six hundred sixty".