129166056307 has 2 divisors, whose sum is σ = 129166056308. Its totient is φ = 129166056306.

The previous prime is 129166056251. The next prime is 129166056317. The reversal of 129166056307 is 703650661921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129166056307 - 2⁷ = 129166056179 is a prime.

It is not a weakly prime, because it can be changed into another prime (129166056317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64583028153 + 64583028154.

It is an arithmetic number, because the mean of its divisors is an integer number (64583028154).

Almost surely, 2^129166056307 is an apocalyptic number.

129166056307 is a deficient number, since it is larger than the sum of its proper divisors (1).

129166056307 is an equidigital number, since it uses as much as digits as its factorization.

129166056307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 129166056307 in words is "one hundred twenty-nine billion, one hundred sixty-six million, fifty-six thousand, three hundred seven".