56667222168 has 32 divisors (see below), whose sum is σ = 144962664000. Its totient is φ = 18449792928.

The previous prime is 56667222151. The next prime is 56667222169. The reversal of 56667222168 is 86122276665.

It is a super-2 number, since 2×56667222168² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56667222168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56667222169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27454018 + ... + 27456081.

It is an arithmetic number, because the mean of its divisors is an integer number (4530083250).

Almost surely, 2^56667222168 is an apocalyptic number.

It is an amenable number.

56667222168 is an abundant number, since it is smaller than the sum of its proper divisors (88295441832).

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

56667222168 is a wasteful number, since it uses less digits than its factorization.

56667222168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54910151 (or 54910147 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 56667222168 in words is "fifty-six billion, six hundred sixty-seven million, two hundred twenty-two thousand, one hundred sixty-eight".