12666050051 has 2 divisors, whose sum is σ = 12666050052. Its totient is φ = 12666050050.

The previous prime is 12666049969. The next prime is 12666050053. The reversal of 12666050051 is 15005066621.

12666050051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (15005066621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12666050051 - 2²² = 12661855747 is a prime.

Together with 12666050053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12666050053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6333025025 + 6333025026.

It is an arithmetic number, because the mean of its divisors is an integer number (6333025026).

Almost surely, 2^12666050051 is an apocalyptic number.

12666050051 is a deficient number, since it is larger than the sum of its proper divisors (1).

12666050051 is an equidigital number, since it uses as much as digits as its factorization.

12666050051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 12666050051 in words is "twelve billion, six hundred sixty-six million, fifty thousand, fifty-one".