168851872 has 24 divisors (see below), whose sum is σ = 379917216. Its totient is φ = 72364992.

The previous prime is 168851869. The next prime is 168851887. The reversal of 168851872 is 278158861.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376678 + ... + 377125.

It is an arithmetic number, because the mean of its divisors is an integer number (15829884).

Almost surely, 2^168851872 is an apocalyptic number.

It is an amenable number.

168851872 is an abundant number, since it is smaller than the sum of its proper divisors (211065344).

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

168851872 is an equidigital number, since it uses as much as digits as its factorization.

168851872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753820 (or 753812 counting only the distinct ones).

The product of its digits is 215040, while the sum is 46.

The square root of 168851872 is about 12994.3015202819. The cubic root of 168851872 is about 552.7159023253.

The spelling of 168851872 in words is "one hundred sixty-eight million, eight hundred fifty-one thousand, eight hundred seventy-two".