666040316 has 12 divisors (see below), whose sum is σ = 1168091232. Its totient is φ = 332299968.

The previous prime is 666040289. The next prime is 666040339. The reversal of 666040316 is 613040666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177965 + ... + 181668.

It is an arithmetic number, because the mean of its divisors is an integer number (97340936).

Almost surely, 2^666040316 is an apocalyptic number.

It is an amenable number.

666040316 is a deficient number, since it is larger than the sum of its proper divisors (502050916).

666040316 is a wasteful number, since it uses less digits than its factorization.

666040316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360100 (or 360098 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 666040316 is about 25807.7568959412. The cubic root of 666040316 is about 873.3067951586.

The spelling of 666040316 in words is "six hundred sixty-six million, forty thousand, three hundred sixteen".