668936014 has 16 divisors (see below), whose sum is σ = 1020055680. Its totient is φ = 328940920.

The previous prime is 668936003. The next prime is 668936017. The reversal of 668936014 is 410639866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668936017) by changing a digit.

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, 53877 + ... + 65119.

It is an arithmetic number, because the mean of its divisors is an integer number (63753480).

Almost surely, 2^668936014 is an apocalyptic number.

668936014 is a deficient number, since it is larger than the sum of its proper divisors (351119666).

668936014 is a wasteful number, since it uses less digits than its factorization.

668936014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11735.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 668936014 is about 25863.7973623364. The cubic root of 668936014 is about 874.5705708864.

The spelling of 668936014 in words is "six hundred sixty-eight million, nine hundred thirty-six thousand, fourteen".