166018916 has 24 divisors (see below), whose sum is σ = 333344256. Its totient is φ = 70871040.

The previous prime is 166018901. The next prime is 166018921. The reversal of 166018916 is 619810661.

166018916 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 166018916.

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, 4340 + ... + 18731.

It is an arithmetic number, because the mean of its divisors is an integer number (13889344).

Almost surely, 2^166018916 is an apocalyptic number.

It is an amenable number.

166018916 is an abundant number, since it is smaller than the sum of its proper divisors (167325340).

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

166018916 is a wasteful number, since it uses less digits than its factorization.

166018916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23339 (or 23337 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 166018916 is about 12884.8327889810. The cubic root of 166018916 is about 549.6073406736.

The spelling of 166018916 in words is "one hundred sixty-six million, eighteen thousand, nine hundred sixteen".