12606525265 has 4 divisors (see below), whose sum is σ = 15127830324. Its totient is φ = 10085220208.

The previous prime is 12606525257. The next prime is 12606525293. The reversal of 12606525265 is 56252560621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7806252609 + 4800272656 = 88353^2 + 69284^2 .

It is a cyclic number.

It is not a de Polignac number, because 12606525265 - 2³ = 12606525257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1260652522 + ... + 1260652531.

It is an arithmetic number, because the mean of its divisors is an integer number (3781957581).

Almost surely, 2^12606525265 is an apocalyptic number.

It is an amenable number.

12606525265 is a deficient number, since it is larger than the sum of its proper divisors (2521305059).

12606525265 is an equidigital number, since it uses as much as digits as its factorization.

12606525265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521305058.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 12606525265 in words is "twelve billion, six hundred six million, five hundred twenty-five thousand, two hundred sixty-five".