12668655683 has 4 divisors (see below), whose sum is σ = 12669030288. Its totient is φ = 12668281080.

The previous prime is 12668655647. The next prime is 12668655689. The reversal of 12668655683 is 38655686621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12668655683 - 2¹⁰ = 12668654659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12668655689) 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, 130916 + ... + 206097.

It is an arithmetic number, because the mean of its divisors is an integer number (3167257572).

Almost surely, 2^12668655683 is an apocalyptic number.

12668655683 is a deficient number, since it is larger than the sum of its proper divisors (374605).

12668655683 is an equidigital number, since it uses as much as digits as its factorization.

12668655683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374604.

The product of its digits is 12441600, while the sum is 56.

The spelling of 12668655683 in words is "twelve billion, six hundred sixty-eight million, six hundred fifty-five thousand, six hundred eighty-three".