51180161922 has 18 divisors (see below), whose sum is σ = 110892430467. Its totient is φ = 17059734036.

The previous prime is 51180161917. The next prime is 51180161939. The reversal of 51180161922 is 22916108115.

51180161922 is a `hidden beast` number, since 5 + 1 + 18 + 0 + 1 + 619 + 22 = 666.

51180161922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 25590080961 + 25590080961 = 159969^2 + 159969^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=159969.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 933153 + ... + 986475.

Almost surely, 2^51180161922 is an apocalyptic number.

51180161922 is an abundant number, since it is smaller than the sum of its proper divisors (59712268545).

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

51180161922 is an frugal number, since it uses more digits than its factorization.

51180161922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106654 (or 53328 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The spelling of 51180161922 in words is "fifty-one billion, one hundred eighty million, one hundred sixty-one thousand, nine hundred twenty-two".