12668 has 6 divisors (see below), whose sum is σ = 22176. Its totient is φ = 6332.

The previous prime is 12659. The next prime is 12671. The reversal of 12668 is 86621.

It is a plaindrome in base 10 and base 14.

It is a congruent number.

It is an unprimeable number.

12668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580 + ... + 1587.

It is an arithmetic number, because the mean of its divisors is an integer number (3696).

2¹²⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

12668 is a deficient number, since it is larger than the sum of its proper divisors (9508).

12668 is a wasteful number, since it uses less digits than its factorization.

12668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171 (or 3169 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 12668 is about 112.5522101071. The cubic root of 12668 is about 23.3114534123.

The spelling of 12668 in words is "twelve thousand, six hundred sixty-eight".