666307214 has 16 divisors (see below), whose sum is σ = 1060913376. Its totient is φ = 312768000.

The previous prime is 666307207. The next prime is 666307249. The reversal of 666307214 is 412703666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10802 + ... + 38069.

It is an arithmetic number, because the mean of its divisors is an integer number (66307086).

Almost surely, 2^666307214 is an apocalyptic number.

666307214 is a deficient number, since it is larger than the sum of its proper divisors (394606162).

666307214 is a wasteful number, since it uses less digits than its factorization.

666307214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49291.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 666307214 is about 25812.9272652289. The cubic root of 666307214 is about 873.4234310960.

The spelling of 666307214 in words is "six hundred sixty-six million, three hundred seven thousand, two hundred fourteen".