179980668 has 72 divisors (see below), whose sum is σ = 536739840. Its totient is φ = 49762080.

The previous prime is 179980663. The next prime is 179980709. The reversal of 179980668 is 866089971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (179980663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3708 + ... + 19331.

It is an arithmetic number, because the mean of its divisors is an integer number (7454720).

Almost surely, 2^179980668 is an apocalyptic number.

179980668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 179980668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268369920).

179980668 is an abundant number, since it is smaller than the sum of its proper divisors (356759172).

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

179980668 is a wasteful number, since it uses less digits than its factorization.

179980668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23087 (or 23082 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 179980668 is about 13415.6873845510. The cubic root of 179980668 is about 564.6014031510.

The spelling of 179980668 in words is "one hundred seventy-nine million, nine hundred eighty thousand, six hundred sixty-eight".