12666375375 has 16 divisors (see below), whose sum is σ = 21076849248. Its totient is φ = 6755400000.

The previous prime is 12666375347. The next prime is 12666375377. The reversal of 12666375375 is 57357366621.

It is not a de Polignac number, because 12666375375 - 2¹¹ = 12666373327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12666375377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16888126 + ... + 16888875.

It is an arithmetic number, because the mean of its divisors is an integer number (1317303078).

Almost surely, 2^12666375375 is an apocalyptic number.

12666375375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12666375375 is a deficient number, since it is larger than the sum of its proper divisors (8410473873).

12666375375 is an equidigital number, since it uses as much as digits as its factorization.

12666375375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33777019 (or 33777009 counting only the distinct ones).

The product of its digits is 4762800, while the sum is 51.

The spelling of 12666375375 in words is "twelve billion, six hundred sixty-six million, three hundred seventy-five thousand, three hundred seventy-five".