168888900 has 36 divisors (see below), whose sum is σ = 488652752. Its totient is φ = 45036960.

The previous prime is 168888893. The next prime is 168888901. The reversal of 168888900 is 9888861.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 168888900.

It is not an unprimeable number, because it can be changed into a prime (168888901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281182 + ... + 281781.

Almost surely, 2^168888900 is an apocalyptic number.

168888900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168888900 is an abundant number, since it is smaller than the sum of its proper divisors (319763852).

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

168888900 is a wasteful number, since it uses less digits than its factorization.

168888900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562980 (or 562973 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 48.

The square root of 168888900 is about 12995.7262205696. The cubic root of 168888900 is about 552.7563015785.

The spelling of 168888900 in words is "one hundred sixty-eight million, eight hundred eighty-eight thousand, nine hundred".