168866304 has 160 divisors (see below), whose sum is σ = 494968320. Its totient is φ = 50921472.

The previous prime is 168866297. The next prime is 168866309. The reversal of 168866304 is 403668861.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168866309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 757137 + ... + 757359.

It is an arithmetic number, because the mean of its divisors is an integer number (3093552).

Almost surely, 2^168866304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168866304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247484160).

168866304 is an abundant number, since it is smaller than the sum of its proper divisors (326102016).

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

168866304 is a wasteful number, since it uses less digits than its factorization.

168866304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 168866304 is about 12994.8568287611. The cubic root of 168866304 is about 552.7316490042.

The spelling of 168866304 in words is "one hundred sixty-eight million, eight hundred sixty-six thousand, three hundred four".