56166783122 has 18 divisors (see below), whose sum is σ = 85128401223. Its totient is φ = 27793644012.

The previous prime is 56166783121. The next prime is 56166783161. The reversal of 56166783122 is 22138766165.

It can be written as a sum of positive squares in only one way, i.e., 28083391561 + 28083391561 = 167581^2 + 167581^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=167581.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56166783121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 34520873 + ... + 34522499.

Almost surely, 2^56166783122 is an apocalyptic number.

56166783122 is a deficient number, since it is larger than the sum of its proper divisors (28961618101).

56166783122 is an frugal number, since it uses more digits than its factorization.

56166783122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462 (or 1732 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The spelling of 56166783122 in words is "fifty-six billion, one hundred sixty-six million, seven hundred eighty-three thousand, one hundred twenty-two".