660150 has 60 divisors (see below), whose sum is σ = 1845492. Its totient is φ = 174960.

The previous prime is 660137. The next prime is 660157. The reversal of 660150 is 51066.

660150 is a `hidden beast` number, since 660 + 1 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660157) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3969 + ... + 4131.

2⁶⁶⁰¹⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (922746).

660150 is an abundant number, since it is smaller than the sum of its proper divisors (1185342).

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

660150 is a wasteful number, since it uses less digits than its factorization.

660150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 660150 is about 812.4961538371. The cubic root of 660150 is about 87.0724723119.

The spelling of 660150 in words is "six hundred sixty thousand, one hundred fifty".