168251168 has 18 divisors (see below), whose sum is σ = 331389009. Its totient is φ = 84088896.

The previous prime is 168251147. The next prime is 168251177. The reversal of 168251168 is 861152861.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

168251168 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 160478224 + 7772944 = 12668^2 + 2788^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=9172.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 72230 + ... + 74522.

Almost surely, 2^168251168 is an apocalyptic number.

It is an amenable number.

168251168 is a deficient number, since it is larger than the sum of its proper divisors (163137841).

168251168 is an frugal number, since it uses more digits than its factorization.

168251168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596 (or 2295 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 168251168 is about 12971.1667940860. The cubic root of 168251168 is about 552.0596798878.

The spelling of 168251168 in words is "one hundred sixty-eight million, two hundred fifty-one thousand, one hundred sixty-eight".