12145665275 has 12 divisors (see below), whose sum is σ = 15062448144. Its totient is φ = 9715356000.

The previous prime is 12145665253. The next prime is 12145665281. The reversal of 12145665275 is 57256654121.

It is not a de Polignac number, because 12145665275 - 2²⁴ = 12128888059 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 11 ways as a sum of consecutive naturals, for example, 224090 + ... + 272960.

It is an arithmetic number, because the mean of its divisors is an integer number (1255204012).

Almost surely, 2^12145665275 is an apocalyptic number.

12145665275 is a deficient number, since it is larger than the sum of its proper divisors (2916782869).

12145665275 is an equidigital number, since it uses as much as digits as its factorization.

12145665275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58822 (or 58817 counting only the distinct ones).

The product of its digits is 504000, while the sum is 44.

The spelling of 12145665275 in words is "twelve billion, one hundred forty-five million, six hundred sixty-five thousand, two hundred seventy-five".