56510165660 has 48 divisors (see below), whose sum is σ = 128506096992. Its totient is φ = 20749996800.

The previous prime is 56510165633. The next prime is 56510165671. The reversal of 56510165660 is 6656101565.

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, 553346 + ... + 647465.

It is an arithmetic number, because the mean of its divisors is an integer number (2677210354).

Almost surely, 2^56510165660 is an apocalyptic number.

It is an amenable number.

56510165660 is an abundant number, since it is smaller than the sum of its proper divisors (71995931332).

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

56510165660 is a wasteful number, since it uses less digits than its factorization.

56510165660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201014 (or 1201012 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 56510165660 in words is "fifty-six billion, five hundred ten million, one hundred sixty-five thousand, six hundred sixty".