12266641371779 has 2 divisors, whose sum is σ = 12266641371780. Its totient is φ = 12266641371778.

The previous prime is 12266641371773. The next prime is 12266641371781. The reversal of 12266641371779 is 97717314666221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12266641371779 is a prime.

It is a Sophie Germain prime.

Together with 12266641371781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12266641371773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6133320685889 + 6133320685890.

It is an arithmetic number, because the mean of its divisors is an integer number (6133320685890).

Almost surely, 2^{12266641371779} is an apocalyptic number.

12266641371779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12266641371779 is an equidigital number, since it uses as much as digits as its factorization.

12266641371779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32006016, while the sum is 62.

The spelling of 12266641371779 in words is "twelve trillion, two hundred sixty-six billion, six hundred forty-one million, three hundred seventy-one thousand, seven hundred seventy-nine".