168522804 has 36 divisors (see below), whose sum is σ = 426751780. Its totient is φ = 56073600.

The previous prime is 168522803. The next prime is 168522811. The reversal of 168522804 is 408225861.

168522804 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 122146704 + 46376100 = 11052^2 + 6810^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168522803) 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, 17742 + ... + 25530.

Almost surely, 2^168522804 is an apocalyptic number.

It is an amenable number.

168522804 is an abundant number, since it is smaller than the sum of its proper divisors (258228976).

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

168522804 is a wasteful number, since it uses less digits than its factorization.

168522804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8400 (or 8395 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 168522804 is about 12981.6333332905. The cubic root of 168522804 is about 552.3566142387.

The spelling of 168522804 in words is "one hundred sixty-eight million, five hundred twenty-two thousand, eight hundred four".