12334455666779 has 2 divisors, whose sum is σ = 12334455666780. Its totient is φ = 12334455666778.

The previous prime is 12334455666691. The next prime is 12334455666803. The reversal of 12334455666779 is 97766655443321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12334455666779 - 2⁸ = 12334455666523 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (12334455966779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6167227833389 + 6167227833390.

It is an arithmetic number, because the mean of its divisors is an integer number (6167227833390).

Almost surely, 2^{12334455666779} is an apocalyptic number.

12334455666779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12334455666779 is an equidigital number, since it uses as much as digits as its factorization.

12334455666779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 685843200, while the sum is 68.

The spelling of 12334455666779 in words is "twelve trillion, three hundred thirty-four billion, four hundred fifty-five million, six hundred sixty-six thousand, seven hundred seventy-nine".