12766 has 8 divisors (see below), whose sum is σ = 20664. Its totient is φ = 5880.

The previous prime is 12763. The next prime is 12781. The reversal of 12766 is 66721.

12766 = T₄₀ + T₄₁ + ... + T₅₁.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220 + ... + 271.

It is an arithmetic number, because the mean of its divisors is an integer number (2583).

2¹²⁷⁶⁶ is an apocalyptic number.

12766 is a deficient number, since it is larger than the sum of its proper divisors (7898).

12766 is a wasteful number, since it uses less digits than its factorization.

12766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506.

The product of its digits is 504, while the sum is 22.

The square root of 12766 is about 112.9867248839. The cubic root of 12766 is about 23.3714117477.

The spelling of 12766 in words is "twelve thousand, seven hundred sixty-six".