129665570413 has 2 divisors, whose sum is σ = 129665570414. Its totient is φ = 129665570412.

The previous prime is 129665570393. The next prime is 129665570423. The reversal of 129665570413 is 314075566921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126567312169 + 3098258244 = 355763^2 + 55662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129665570413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129665570423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64832785206 + 64832785207.

It is an arithmetic number, because the mean of its divisors is an integer number (64832785207).

Almost surely, 2^129665570413 is an apocalyptic number.

It is an amenable number.

129665570413 is a deficient number, since it is larger than the sum of its proper divisors (1).

129665570413 is an equidigital number, since it uses as much as digits as its factorization.

129665570413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 129665570413 in words is "one hundred twenty-nine billion, six hundred sixty-five million, five hundred seventy thousand, four hundred thirteen".