68156130051 has 8 divisors (see below), whose sum is σ = 100972044560. Its totient is φ = 45437420016.

The previous prime is 68156130043. The next prime is 68156130061. The reversal of 68156130051 is 15003165186.

68156130051 is a `hidden beast` number, since 68 + 1 + 561 + 30 + 0 + 5 + 1 = 666.

68156130051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 68156130051 - 2³ = 68156130043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68156129988 and 68156130015.

It is not an unprimeable number, because it can be changed into a prime (68156130061) 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, 1262150530 + ... + 1262150583.

It is an arithmetic number, because the mean of its divisors is an integer number (12621505570).

Almost surely, 2^68156130051 is an apocalyptic number.

68156130051 is a deficient number, since it is larger than the sum of its proper divisors (32815914509).

68156130051 is a wasteful number, since it uses less digits than its factorization.

68156130051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524301122 (or 2524301116 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 68156130051 in words is "sixty-eight billion, one hundred fifty-six million, one hundred thirty thousand, fifty-one".