666704702 has 16 divisors (see below), whose sum is σ = 1046470752. Its totient is φ = 318221280.

The previous prime is 666704681. The next prime is 666704747. The reversal of 666704702 is 207407666.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81074 + ... + 88917.

It is an arithmetic number, because the mean of its divisors is an integer number (65404422).

Almost surely, 2^666704702 is an apocalyptic number.

666704702 is a deficient number, since it is larger than the sum of its proper divisors (379766050).

666704702 is a wasteful number, since it uses less digits than its factorization.

666704702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170083.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 666704702 is about 25820.6255152736. The cubic root of 666704702 is about 873.5970778824.

The spelling of 666704702 in words is "six hundred sixty-six million, seven hundred four thousand, seven hundred two".