12344511666791 has 2 divisors, whose sum is σ = 12344511666792. Its totient is φ = 12344511666790.

The previous prime is 12344511666779. The next prime is 12344511666803. The reversal of 12344511666791 is 19766611544321.

It is a balanced prime because it is at equal distance from previous prime (12344511666779) and next prime (12344511666803).

It is a cyclic number.

It is not a de Polignac number, because 12344511666791 - 2⁶ = 12344511666727 is a prime.

It is a super-2 number, since 2×12344511666791² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12344511666731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172255833395 + 6172255833396.

It is an arithmetic number, because the mean of its divisors is an integer number (6172255833396).

Almost surely, 2^{12344511666791} is an apocalyptic number.

12344511666791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12344511666791 is an equidigital number, since it uses as much as digits as its factorization.

12344511666791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 56.

The spelling of 12344511666791 in words is "twelve trillion, three hundred forty-four billion, five hundred eleven million, six hundred sixty-six thousand, seven hundred ninety-one".