12036252565 has 8 divisors (see below), whose sum is σ = 14716022328. Its totient is φ = 9447322560.

The previous prime is 12036252511. The next prime is 12036252643. The reversal of 12036252565 is 56525263021.

It can be written as a sum of positive squares in 4 ways, for example, as 554272849 + 11481979716 = 23543^2 + 107154^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12036252565 - 2²⁵ = 12002698133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22709646 + ... + 22710175.

It is an arithmetic number, because the mean of its divisors is an integer number (1839502791).

Almost surely, 2^12036252565 is an apocalyptic number.

It is an amenable number.

12036252565 is a deficient number, since it is larger than the sum of its proper divisors (2679769763).

12036252565 is an equidigital number, since it uses as much as digits as its factorization.

12036252565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45419879.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 12036252565 in words is "twelve billion, thirty-six million, two hundred fifty-two thousand, five hundred sixty-five".