180660 has 24 divisors (see below), whose sum is σ = 506016. Its totient is φ = 48160.

The previous prime is 180647. The next prime is 180667. The reversal of 180660 is 66081.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 180660.

It is not an unprimeable number, because it can be changed into a prime (180667) 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, 1446 + ... + 1565.

It is an arithmetic number, because the mean of its divisors is an integer number (21084).

2¹⁸⁰⁶⁶⁰ is an apocalyptic number.

180660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180660 is an abundant number, since it is smaller than the sum of its proper divisors (325356).

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

180660 is a wasteful number, since it uses less digits than its factorization.

180660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023 (or 3021 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 180660 is about 425.0411744761. The cubic root of 180660 is about 56.5310868683.

The spelling of 180660 in words is "one hundred eighty thousand, six hundred sixty".