180668189 has 8 divisors (see below), whose sum is σ = 194722080. Its totient is φ = 166636656.

The previous prime is 180668183. The next prime is 180668203. The reversal of 180668189 is 981866081.

180668189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 180668189 - 2⁸ = 180667933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180668183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13682 + ... + 23420.

It is an arithmetic number, because the mean of its divisors is an integer number (24340260).

Almost surely, 2^180668189 is an apocalyptic number.

It is an amenable number.

180668189 is a deficient number, since it is larger than the sum of its proper divisors (14053891).

180668189 is a wasteful number, since it uses less digits than its factorization.

180668189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11179.

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 180668189 is about 13441.2867315596. The cubic root of 180668189 is about 565.3194100700.

The spelling of 180668189 in words is "one hundred eighty million, six hundred sixty-eight thousand, one hundred eighty-nine".