56116667280 has 40 divisors (see below), whose sum is σ = 173961669312. Its totient is φ = 14964444544.

The previous prime is 56116667273. The next prime is 56116667281. The reversal of 56116667280 is 8276661165.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×56116667280² (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 not an unprimeable number, because it can be changed into a prime (56116667281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116909484 + ... + 116909963.

Almost surely, 2^56116667280 is an apocalyptic number.

It is an amenable number.

56116667280 is an abundant number, since it is smaller than the sum of its proper divisors (117845002032).

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

56116667280 is a wasteful number, since it uses less digits than its factorization.

56116667280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233819463 (or 233819457 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 56116667280 in words is "fifty-six billion, one hundred sixteen million, six hundred sixty-seven thousand, two hundred eighty".