166056504 has 128 divisors (see below), whose sum is σ = 464486400. Its totient is φ = 49230720.

The previous prime is 166056479. The next prime is 166056509. The reversal of 166056504 is 405650661.

166056504 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166056509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 744537 + ... + 744759.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 2^166056504 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 166056504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232243200).

166056504 is an abundant number, since it is smaller than the sum of its proper divisors (298429896).

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

166056504 is a wasteful number, since it uses less digits than its factorization.

166056504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 166056504 is about 12886.2913206244. The cubic root of 166056504 is about 549.6488160314.

The spelling of 166056504 in words is "one hundred sixty-six million, fifty-six thousand, five hundred four".