166660312 has 32 divisors (see below), whose sum is σ = 384602400. Its totient is φ = 65931264.

The previous prime is 166660301. The next prime is 166660327. The reversal of 166660312 is 213066661.

166660312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113737 + ... + 115192.

It is an arithmetic number, because the mean of its divisors is an integer number (12018825).

Almost surely, 2^166660312 is an apocalyptic number.

It is an amenable number.

166660312 is an abundant number, since it is smaller than the sum of its proper divisors (217942088).

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

166660312 is a wasteful number, since it uses less digits than its factorization.

166660312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228955 (or 228951 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 166660312 is about 12909.6983698303. The cubic root of 166660312 is about 550.3142138445.

The spelling of 166660312 in words is "one hundred sixty-six million, six hundred sixty thousand, three hundred twelve".