12276756566 has 8 divisors (see below), whose sum is σ = 18419996160. Its totient is φ = 6136757848.

The previous prime is 12276756563. The next prime is 12276756571. The reversal of 12276756566 is 66565767221.

It is a happy number.

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

It is a super-2 number, since 2×12276756566² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12276756563) 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, 800726 + ... + 815913.

It is an arithmetic number, because the mean of its divisors is an integer number (2302499520).

Almost surely, 2^12276756566 is an apocalyptic number.

12276756566 is a deficient number, since it is larger than the sum of its proper divisors (6143239594).

12276756566 is a wasteful number, since it uses less digits than its factorization.

12276756566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620438.

The product of its digits is 6350400, while the sum is 53.

The spelling of 12276756566 in words is "twelve billion, two hundred seventy-six million, seven hundred fifty-six thousand, five hundred sixty-six".