166606212 has 48 divisors (see below), whose sum is σ = 411810560. Its totient is φ = 52278048.

The previous prime is 166606159. The next prime is 166606243. The reversal of 166606212 is 212606661.

166606212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166606212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34923 + ... + 39405.

Almost surely, 2^166606212 is an apocalyptic number.

166606212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166606212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205905280).

166606212 is an abundant number, since it is smaller than the sum of its proper divisors (245204348).

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

166606212 is a wasteful number, since it uses less digits than its factorization.

166606212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672 (or 4670 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 166606212 is about 12907.6028758248. The cubic root of 166606212 is about 550.2546611319.

The spelling of 166606212 in words is "one hundred sixty-six million, six hundred six thousand, two hundred twelve".