166664124 has 144 divisors (see below), whose sum is σ = 512628480. Its totient is φ = 44997120.

The previous prime is 166664123. The next prime is 166664149. The reversal of 166664124 is 421466661.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166664123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127257 + ... + 128559.

It is an arithmetic number, because the mean of its divisors is an integer number (3559920).

Almost surely, 2^166664124 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 166664124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256314240).

166664124 is an abundant number, since it is smaller than the sum of its proper divisors (345964356).

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

166664124 is a wasteful number, since it uses less digits than its factorization.

166664124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360 (or 1355 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 166664124 is about 12909.8460099259. The cubic root of 166664124 is about 550.3184095681.

The spelling of 166664124 in words is "one hundred sixty-six million, six hundred sixty-four thousand, one hundred twenty-four".