166664036 has 48 divisors (see below), whose sum is σ = 365783040. Its totient is φ = 64549920.

The previous prime is 166664033. The next prime is 166664053. The reversal of 166664036 is 630466661.

166664036 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 not an unprimeable number, because it can be changed into a prime (166664033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53621 + ... + 56643.

It is an arithmetic number, because the mean of its divisors is an integer number (7620480).

Almost surely, 2^166664036 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 166664036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182891520).

166664036 is an abundant number, since it is smaller than the sum of its proper divisors (199119004).

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

166664036 is a wasteful number, since it uses less digits than its factorization.

166664036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224 (or 3222 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 166664036 is about 12909.8426016741. The cubic root of 166664036 is about 550.3183127106.

It can be divided in two parts, 16666 and 4036, that added together give a palindrome (20702).

The spelling of 166664036 in words is "one hundred sixty-six million, six hundred sixty-four thousand, thirty-six".