168668868 has 24 divisors (see below), whose sum is σ = 396071872. Its totient is φ = 55864224.

The previous prime is 168668813. The next prime is 168668873. The reversal of 168668868 is 868866861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42880 + ... + 46647.

Almost surely, 2^168668868 is an apocalyptic number.

It is an amenable number.

168668868 is an abundant number, since it is smaller than the sum of its proper divisors (227403004).

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

168668868 is a wasteful number, since it uses less digits than its factorization.

168668868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89691 (or 89689 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 57.

The square root of 168668868 is about 12987.2579091970. The cubic root of 168668868 is about 552.5161497569.

The spelling of 168668868 in words is "one hundred sixty-eight million, six hundred sixty-eight thousand, eight hundred sixty-eight".