180798660 has 288 divisors, whose sum is σ = 664215552. Its totient is φ = 38949120.

The previous prime is 180798647. The next prime is 180798679. The reversal of 180798660 is 66897081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2546425 + ... + 2546495.

It is an arithmetic number, because the mean of its divisors is an integer number (2306304).

Almost surely, 2^180798660 is an apocalyptic number.

180798660 is a gapful number since it is divisible by the number (10) 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 180798660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332107776).

180798660 is an abundant number, since it is smaller than the sum of its proper divisors (483416892).

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

180798660 is a wasteful number, since it uses less digits than its factorization.

180798660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 180798660 is about 13446.1392228401. The cubic root of 180798660 is about 565.4554606597.

The spelling of 180798660 in words is "one hundred eighty million, seven hundred ninety-eight thousand, six hundred sixty".