56667222172 has 48 divisors (see below), whose sum is σ = 108729331200. Its totient is φ = 25627916160.

The previous prime is 56667222169. The next prime is 56667222181. The reversal of 56667222172 is 27122276665.

It is a super-2 number, since 2×56667222172² (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, 22913128 + ... + 22915600.

It is an arithmetic number, because the mean of its divisors is an integer number (2265194400).

Almost surely, 2^56667222172 is an apocalyptic number.

It is an amenable number.

56667222172 is a deficient number, since it is larger than the sum of its proper divisors (52062109028).

56667222172 is a wasteful number, since it uses less digits than its factorization.

56667222172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906 (or 4904 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The spelling of 56667222172 in words is "fifty-six billion, six hundred sixty-seven million, two hundred twenty-two thousand, one hundred seventy-two".