660866314 has 16 divisors (see below), whose sum is σ = 1051361280. Its totient is φ = 310883760.

The previous prime is 660866273. The next prime is 660866317. The reversal of 660866314 is 413668066.

It is not an unprimeable number, because it can be changed into a prime (660866317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114954 + ... + 120565.

It is an arithmetic number, because the mean of its divisors is an integer number (65710080).

Almost surely, 2^660866314 is an apocalyptic number.

660866314 is a deficient number, since it is larger than the sum of its proper divisors (390494966).

660866314 is a wasteful number, since it uses less digits than its factorization.

660866314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235605.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 660866314 is about 25707.3202415188. The cubic root of 660866314 is about 871.0395439186.

The spelling of 660866314 in words is "six hundred sixty million, eight hundred sixty-six thousand, three hundred fourteen".