12661674755 has 16 divisors (see below), whose sum is σ = 15264469440. Its totient is φ = 10082462208.

The previous prime is 12661674703. The next prime is 12661674757. The reversal of 12661674755 is 55747616621.

12661674755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12661674755 - 2²⁰ = 12660626179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12661674757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157351 + ... + 1168239.

It is an arithmetic number, because the mean of its divisors is an integer number (954029340).

Almost surely, 2^12661674755 is an apocalyptic number.

12661674755 is a deficient number, since it is larger than the sum of its proper divisors (2602794685).

12661674755 is a wasteful number, since it uses less digits than its factorization.

12661674755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11950.

The product of its digits is 2116800, while the sum is 50.

The spelling of 12661674755 in words is "twelve billion, six hundred sixty-one million, six hundred seventy-four thousand, seven hundred fifty-five".