12366 has 16 divisors (see below), whose sum is σ = 27600. Its totient is φ = 4104.

The previous prime is 12347. The next prime is 12373. The reversal of 12366 is 66321.

It is a happy number.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a plaindrome in base 10.

It is a nialpdrome in base 11.

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, 61 + ... + 168.

It is an arithmetic number, because the mean of its divisors is an integer number (1725).

12366 is an abundant number, since it is smaller than the sum of its proper divisors (15234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13800).

12366 is a wasteful number, since it uses less digits than its factorization.

12366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 234 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 12366 is about 111.2025179571. The cubic root of 12366 is about 23.1247163345.

Adding to 12366 its reverse (66321), we get a palindrome (78687).

It can be divided in two parts, 123 and 66, that multiplied together give a palindrome (8118).

The spelling of 12366 in words is "twelve thousand, three hundred sixty-six".