166016664 has 96 divisors (see below), whose sum is σ = 495789840. Its totient is φ = 49766400.

The previous prime is 166016657. The next prime is 166016681. The reversal of 166016664 is 466610661.

166016664 is digitally balanced in base 2, 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75744 + ... + 77904.

Almost surely, 2^166016664 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 166016664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247894920).

166016664 is an abundant number, since it is smaller than the sum of its proper divisors (329773176).

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

166016664 is a wasteful number, since it uses less digits than its factorization.

166016664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 166016664 is about 12884.7453991144. The cubic root of 166016664 is about 549.6048555726.

The spelling of 166016664 in words is "one hundred sixty-six million, sixteen thousand, six hundred sixty-four".