660108 has 12 divisors (see below), whose sum is σ = 1540280. Its totient is φ = 220032.

The previous prime is 660103. The next prime is 660119. The reversal of 660108 is 801066.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 660108.

It is not an unprimeable number, because it can be changed into a prime (660103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27493 + ... + 27516.

2⁶⁶⁰¹⁰⁸ is an apocalyptic number.

It is an amenable number.

660108 is an abundant number, since it is smaller than the sum of its proper divisors (880172).

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

660108 is a wasteful number, since it uses less digits than its factorization.

660108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55016 (or 55014 counting only the distinct ones).

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

The square root of 660108 is about 812.4703071497. The cubic root of 660108 is about 87.0706257006.

The spelling of 660108 in words is "six hundred sixty thousand, one hundred eight".