129665570393 has 2 divisors, whose sum is σ = 129665570394. Its totient is φ = 129665570392.

The previous prime is 129665570389. The next prime is 129665570413. The reversal of 129665570393 is 393075566921.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65041321024 + 64624249369 = 255032^2 + 254213^2 .

It is a cyclic number.

It is not a de Polignac number, because 129665570393 - 2² = 129665570389 is a prime.

It is a super-3 number, since 3×129665570393³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (129665576393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64832785196 + 64832785197.

It is an arithmetic number, because the mean of its divisors is an integer number (64832785197).

Almost surely, 2^129665570393 is an apocalyptic number.

It is an amenable number.

129665570393 is a deficient number, since it is larger than the sum of its proper divisors (1).

129665570393 is an equidigital number, since it uses as much as digits as its factorization.

129665570393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9185400, while the sum is 56.

The spelling of 129665570393 in words is "one hundred twenty-nine billion, six hundred sixty-five million, five hundred seventy thousand, three hundred ninety-three".