666966302 has 16 divisors (see below), whose sum is σ = 1068336000. Its totient is φ = 311596320.

The previous prime is 666966283. The next prime is 666966317. The reversal of 666966302 is 203669666.

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, 183677 + ... + 187272.

It is an arithmetic number, because the mean of its divisors is an integer number (66771000).

Almost surely, 2^666966302 is an apocalyptic number.

666966302 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

666966302 is a deficient number, since it is larger than the sum of its proper divisors (401369698).

666966302 is a wasteful number, since it uses less digits than its factorization.

666966302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371011.

The product of its (nonzero) digits is 419904, while the sum is 44.

The square root of 666966302 is about 25825.6907361643. The cubic root of 666966302 is about 873.7113229203.

The spelling of 666966302 in words is "six hundred sixty-six million, nine hundred sixty-six thousand, three hundred two".