166218036 has 24 divisors (see below), whose sum is σ = 391843200. Its totient is φ = 54834432.

The previous prime is 166218011. The next prime is 166218043. The reversal of 166218036 is 630812661.

It is a junction number, because it is equal to n+sod(n) for n = 166217988 and 166218006.

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, 70236 + ... + 72563.

It is an arithmetic number, because the mean of its divisors is an integer number (16326800).

Almost surely, 2^166218036 is an apocalyptic number.

It is an amenable number.

166218036 is an abundant number, since it is smaller than the sum of its proper divisors (225625164).

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

166218036 is a wasteful number, since it uses less digits than its factorization.

166218036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142903 (or 142901 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 166218036 is about 12892.5573878886. The cubic root of 166218036 is about 549.8269824929.

The spelling of 166218036 in words is "one hundred sixty-six million, two hundred eighteen thousand, thirty-six".