12566 has 8 divisors (see below), whose sum is σ = 19344. Its totient is φ = 6120.

The previous prime is 12553. The next prime is 12569. The reversal of 12566 is 66521.

It is a sphenic number, since it is the product of 3 distinct primes.

12566 is an undulating number in base 11.

It is a plaindrome in base 10.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12569) by changing a digit.

12566 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 in 3 ways as a sum of consecutive naturals, for example, 71 + ... + 173.

It is an arithmetic number, because the mean of its divisors is an integer number (2418).

2¹²⁵⁶⁶ is an apocalyptic number.

12566 is a deficient number, since it is larger than the sum of its proper divisors (6778).

12566 is a wasteful number, since it uses less digits than its factorization.

12566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166.

The product of its digits is 360, while the sum is 20.

The square root of 12566 is about 112.0981712607. The cubic root of 12566 is about 23.2487184710.

It can be divided in two parts, 125 and 66, that added together give a palindrome (191).

The spelling of 12566 in words is "twelve thousand, five hundred sixty-six".