12165334529 has 2 divisors, whose sum is σ = 12165334530. Its totient is φ = 12165334528.

The previous prime is 12165334523. The next prime is 12165334553. The reversal of 12165334529 is 92543356121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11292250225 + 873084304 = 106265^2 + 29548^2 .

It is a cyclic number.

It is not a de Polignac number, because 12165334529 - 2⁴ = 12165334513 is a prime.

It is not a weakly prime, because it can be changed into another prime (12165334523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6082667264 + 6082667265.

It is an arithmetic number, because the mean of its divisors is an integer number (6082667265).

Almost surely, 2^12165334529 is an apocalyptic number.

It is an amenable number.

12165334529 is a deficient number, since it is larger than the sum of its proper divisors (1).

12165334529 is an equidigital number, since it uses as much as digits as its factorization.

12165334529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 41.

The spelling of 12165334529 in words is "twelve billion, one hundred sixty-five million, three hundred thirty-four thousand, five hundred twenty-nine".