168316915122 has 24 divisors (see below), whose sum is σ = 365206914540. Its totient is φ = 56025597600.

The previous prime is 168316915111. The next prime is 168316915139. The reversal of 168316915122 is 221519613861.

It is a happy number.

168316915122 is a `hidden beast` number, since 16 + 8 + 31 + 6 + 91 + 512 + 2 = 666.

168316915122 is digitally balanced in base 3, 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 2 ways, for example, as 142414909641 + 25902005481 = 377379^2 + 160941^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6657097 + ... + 6682332.

Almost surely, 2^168316915122 is an apocalyptic number.

168316915122 is an abundant number, since it is smaller than the sum of its proper divisors (196889999418).

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

168316915122 is a wasteful number, since it uses less digits than its factorization.

168316915122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13340138 (or 13340135 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The spelling of 168316915122 in words is "one hundred sixty-eight billion, three hundred sixteen million, nine hundred fifteen thousand, one hundred twenty-two".