168159804 has 48 divisors (see below), whose sum is σ = 417715200. Its totient is φ = 52500096.

The previous prime is 168159793. The next prime is 168159821. The reversal of 168159804 is 408951861.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 16149 + ... + 24435.

It is an arithmetic number, because the mean of its divisors is an integer number (8702400).

Almost surely, 2^168159804 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 168159804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208857600).

168159804 is an abundant number, since it is smaller than the sum of its proper divisors (249555396).

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

168159804 is a wasteful number, since it uses less digits than its factorization.

168159804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8402 (or 8400 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 168159804 is about 12967.6445046894. The cubic root of 168159804 is about 551.9597350382.

The spelling of 168159804 in words is "one hundred sixty-eight million, one hundred fifty-nine thousand, eight hundred four".