666311704 has 16 divisors (see below), whose sum is σ = 1249678800. Its totient is φ = 333064032.

The previous prime is 666311689. The next prime is 666311729. The reversal of 666311704 is 407113666.

666311704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 666311704.

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, 26917 + ... + 45355.

It is an arithmetic number, because the mean of its divisors is an integer number (78104925).

Almost surely, 2^666311704 is an apocalyptic number.

It is an amenable number.

666311704 is a deficient number, since it is larger than the sum of its proper divisors (583367096).

666311704 is a wasteful number, since it uses less digits than its factorization.

666311704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22962 (or 22958 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 666311704 is about 25813.0142370084. The cubic root of 666311704 is about 873.4253929850.

The spelling of 666311704 in words is "six hundred sixty-six million, three hundred eleven thousand, seven hundred four".