12521607696067 has 2 divisors, whose sum is σ = 12521607696068. Its totient is φ = 12521607696066.

The previous prime is 12521607696043. The next prime is 12521607696079. The reversal of 12521607696067 is 76069670612521.

It is a strong prime.

It is an emirp because it is prime and its reverse (76069670612521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12521607696067 is a prime.

It is not a weakly prime, because it can be changed into another prime (12521607696007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6260803848033 + 6260803848034.

It is an arithmetic number, because the mean of its divisors is an integer number (6260803848034).

Almost surely, 2^{12521607696067} is an apocalyptic number.

12521607696067 is a deficient number, since it is larger than the sum of its proper divisors (1).

12521607696067 is an equidigital number, since it uses as much as digits as its factorization.

12521607696067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 12521607696067 in words is "twelve trillion, five hundred twenty-one billion, six hundred seven million, six hundred ninety-six thousand, sixty-seven".