666833130 has 48 divisors (see below), whose sum is σ = 1736906184. Its totient is φ = 177500160.

The previous prime is 666833117. The next prime is 666833147. The reversal of 666833130 is 31338666.

It can be written as a sum of positive squares in 4 ways, for example, as 655923321 + 10909809 = 25611^2 + 3303^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45510 + ... + 58350.

Almost surely, 2^666833130 is an apocalyptic number.

666833130 is an abundant number, since it is smaller than the sum of its proper divisors (1070073054).

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

666833130 is a wasteful number, since it uses less digits than its factorization.

666833130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13431 (or 13428 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 666833130 is about 25823.1123221040. The cubic root of 666833130 is about 873.6531682434.

The spelling of 666833130 in words is "six hundred sixty-six million, eight hundred thirty-three thousand, one hundred thirty".