168663396 has 24 divisors (see below), whose sum is σ = 429325344. Its totient is φ = 51110080.

The previous prime is 168663379. The next prime is 168663403. The reversal of 168663396 is 693366861.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638745 + ... + 639008.

It is an arithmetic number, because the mean of its divisors is an integer number (17888556).

Almost surely, 2^168663396 is an apocalyptic number.

It is an amenable number.

168663396 is an abundant number, since it is smaller than the sum of its proper divisors (260661948).

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

168663396 is a wasteful number, since it uses less digits than its factorization.

168663396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277771 (or 1277769 counting only the distinct ones).

The product of its digits is 839808, while the sum is 48.

The square root of 168663396 is about 12987.0472394613. The cubic root of 168663396 is about 552.5101747340.

The spelling of 168663396 in words is "one hundred sixty-eight million, six hundred sixty-three thousand, three hundred ninety-six".