166868504 has 32 divisors (see below), whose sum is σ = 342282240. Its totient is φ = 75636000.

The previous prime is 166868497. The next prime is 166868561. The reversal of 166868504 is 405868661.

It is a Harshad number since it is a multiple of its sum of digits (44).

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 7 ways as a sum of consecutive naturals, for example, 31229 + ... + 36179.

It is an arithmetic number, because the mean of its divisors is an integer number (10696320).

Almost surely, 2^166868504 is an apocalyptic number.

It is an amenable number.

166868504 is an abundant number, since it is smaller than the sum of its proper divisors (175413736).

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

166868504 is a wasteful number, since it uses less digits than its factorization.

166868504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351 (or 5347 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 166868504 is about 12917.7592484146. The cubic root of 166868504 is about 550.5432692630.

The spelling of 166868504 in words is "one hundred sixty-six million, eight hundred sixty-eight thousand, five hundred four".