166562604 has 72 divisors (see below), whose sum is σ = 465723440. Its totient is φ = 49859712.

The previous prime is 166562563. The next prime is 166562609. The reversal of 166562604 is 406265661.

It is a happy number.

166562604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (166562609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12507 + ... + 22125.

Almost surely, 2^166562604 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 166562604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232861720).

166562604 is an abundant number, since it is smaller than the sum of its proper divisors (299160836).

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

166562604 is a wasteful number, since it uses less digits than its factorization.

166562604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9679 (or 9674 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 166562604 is about 12905.9135283017. The cubic root of 166562604 is about 550.2066485181.

The spelling of 166562604 in words is "one hundred sixty-six million, five hundred sixty-two thousand, six hundred four".