12168655579 has 2 divisors, whose sum is σ = 12168655580. Its totient is φ = 12168655578.

The previous prime is 12168655553. The next prime is 12168655591. The reversal of 12168655579 is 97555686121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12168655579 - 2⁷ = 12168655451 is a prime.

It is not a weakly prime, because it can be changed into another prime (12168695579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6084327789 + 6084327790.

It is an arithmetic number, because the mean of its divisors is an integer number (6084327790).

Almost surely, 2^12168655579 is an apocalyptic number.

12168655579 is a deficient number, since it is larger than the sum of its proper divisors (1).

12168655579 is an equidigital number, since it uses as much as digits as its factorization.

12168655579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 55.

The spelling of 12168655579 in words is "twelve billion, one hundred sixty-eight million, six hundred fifty-five thousand, five hundred seventy-nine".