12344456666679 has 4 divisors (see below), whose sum is σ = 16459275555576. Its totient is φ = 8229637777784.

The previous prime is 12344456666629. The next prime is 12344456666699. The reversal of 12344456666679 is 97666665444321.

It is a happy number.

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 12344456666679 - 2²⁸ = 12344188231223 is a prime.

It is a super-2 number, since 2×12344456666679² (a number of 27 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344456666629) 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, 2057409444444 + ... + 2057409444449.

It is an arithmetic number, because the mean of its divisors is an integer number (4114818888894).

Almost surely, 2^{12344456666679} is an apocalyptic number.

12344456666679 is a deficient number, since it is larger than the sum of its proper divisors (4114818888897).

12344456666679 is an equidigital number, since it uses as much as digits as its factorization.

12344456666679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4114818888896.

The product of its digits is 940584960, while the sum is 69.

The spelling of 12344456666679 in words is "twelve trillion, three hundred forty-four billion, four hundred fifty-six million, six hundred sixty-six thousand, six hundred seventy-nine".