666560232 has 64 divisors (see below), whose sum is σ = 1993992000. Its totient is φ = 205094592.

The previous prime is 666560227. The next prime is 666560239. The reversal of 666560232 is 232065666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (666560239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115882 + ... + 121497.

It is an arithmetic number, because the mean of its divisors is an integer number (31156125).

Almost surely, 2^666560232 is an apocalyptic number.

It is an amenable number.

666560232 is an abundant number, since it is smaller than the sum of its proper divisors (1327431768).

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

666560232 is a wasteful number, since it uses less digits than its factorization.

666560232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237407 (or 237397 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 666560232 is about 25817.8277939876. The cubic root of 666560232 is about 873.5339726392.

The spelling of 666560232 in words is "six hundred sixty-six million, five hundred sixty thousand, two hundred thirty-two".