668316614 has 32 divisors (see below), whose sum is σ = 1225627200. Its totient is φ = 266784768.

The previous prime is 668316613. The next prime is 668316619. The reversal of 668316614 is 416613866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668316611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8612 + ... + 37560.

It is an arithmetic number, because the mean of its divisors is an integer number (38300850).

Almost surely, 2^668316614 is an apocalyptic number.

668316614 is a deficient number, since it is larger than the sum of its proper divisors (557310586).

668316614 is a wasteful number, since it uses less digits than its factorization.

668316614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29072.

The product of its digits is 124416, while the sum is 41.

The square root of 668316614 is about 25851.8203227548. The cubic root of 668316614 is about 874.3005518888.

The spelling of 668316614 in words is "six hundred sixty-eight million, three hundred sixteen thousand, six hundred fourteen".