666932130 has 40 divisors (see below), whose sum is σ = 1793308572. Its totient is φ = 177848352.

The previous prime is 666932113. The next prime is 666932131. The reversal of 666932130 is 31239666.

It can be written as a sum of positive squares in 2 ways, for example, as 635493681 + 31438449 = 25209^2 + 5607^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (666932131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 410877 + ... + 412496.

Almost surely, 2^666932130 is an apocalyptic number.

666932130 is an abundant number, since it is smaller than the sum of its proper divisors (1126376442).

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

666932130 is a wasteful number, since it uses less digits than its factorization.

666932130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823392 (or 823383 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 666932130 is about 25825.0291384153. The cubic root of 666932130 is about 873.6964011403.

The spelling of 666932130 in words is "six hundred sixty-six million, nine hundred thirty-two thousand, one hundred thirty".