12529165125 has 32 divisors (see below), whose sum is σ = 20871137664. Its totient is φ = 6674976000.

The previous prime is 12529165123. The next prime is 12529165157. The reversal of 12529165125 is 52156192521.

It is not a de Polignac number, because 12529165125 - 2¹ = 12529165123 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12529165123) 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 in 31 ways as a sum of consecutive naturals, for example, 337485 + ... + 372765.

It is an arithmetic number, because the mean of its divisors is an integer number (652223052).

Almost surely, 2^12529165125 is an apocalyptic number.

12529165125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12529165125 is a deficient number, since it is larger than the sum of its proper divisors (8341972539).

12529165125 is an equidigital number, since it uses as much as digits as its factorization.

12529165125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36246 (or 36236 counting only the distinct ones).

The product of its digits is 54000, while the sum is 39.

The spelling of 12529165125 in words is "twelve billion, five hundred twenty-nine million, one hundred sixty-five thousand, one hundred twenty-five".