12666545307 has 12 divisors (see below), whose sum is σ = 19703515104. Its totient is φ = 7794797040.

The previous prime is 12666545299. The next prime is 12666545357. The reversal of 12666545307 is 70354566621.

It is not a de Polignac number, because 12666545307 - 2³ = 12666545299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12666545357) 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 11 ways as a sum of consecutive naturals, for example, 54130419 + ... + 54130652.

It is an arithmetic number, because the mean of its divisors is an integer number (1641959592).

Almost surely, 2^12666545307 is an apocalyptic number.

12666545307 is a deficient number, since it is larger than the sum of its proper divisors (7036969797).

12666545307 is a wasteful number, since it uses less digits than its factorization.

12666545307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108261090 (or 108261087 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 12666545307 in words is "twelve billion, six hundred sixty-six million, five hundred forty-five thousand, three hundred seven".