56668890000 has 100 divisors (see below), whose sum is σ = 182934829616. Its totient is φ = 15111696000.

The previous prime is 56668889993. The next prime is 56668890079. The reversal of 56668890000 is 9886665.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×56668890000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 914482 + ... + 974481.

Almost surely, 2^56668890000 is an apocalyptic number.

56668890000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56668890000 is an abundant number, since it is smaller than the sum of its proper divisors (126265939616).

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

56668890000 is a wasteful number, since it uses less digits than its factorization.

56668890000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888994 (or 1888973 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 56668890000 in words is "fifty-six billion, six hundred sixty-eight million, eight hundred ninety thousand".