12756664064167 has 2 divisors, whose sum is σ = 12756664064168. Its totient is φ = 12756664064166.

The previous prime is 12756664064159. The next prime is 12756664064171. The reversal of 12756664064167 is 76146046665721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12756664064167 - 2³ = 12756664064159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12756664064147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6378332032083 + 6378332032084.

It is an arithmetic number, because the mean of its divisors is an integer number (6378332032084).

Almost surely, 2^{12756664064167} is an apocalyptic number.

12756664064167 is a deficient number, since it is larger than the sum of its proper divisors (1).

12756664064167 is an equidigital number, since it uses as much as digits as its factorization.

12756664064167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60963840, while the sum is 61.

The spelling of 12756664064167 in words is "twelve trillion, seven hundred fifty-six billion, six hundred sixty-four million, sixty-four thousand, one hundred sixty-seven".