12117166051 has 2 divisors, whose sum is σ = 12117166052. Its totient is φ = 12117166050.

The previous prime is 12117165937. The next prime is 12117166069. The reversal of 12117166051 is 15066171121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12117166051 - 2¹⁹ = 12116641763 is a prime.

It is not a weakly prime, because it can be changed into another prime (12117166351) 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 as a sum of consecutive naturals, namely, 6058583025 + 6058583026.

It is an arithmetic number, because the mean of its divisors is an integer number (6058583026).

Almost surely, 2^12117166051 is an apocalyptic number.

12117166051 is a deficient number, since it is larger than the sum of its proper divisors (1).

12117166051 is an equidigital number, since it uses as much as digits as its factorization.

12117166051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 31.

The spelling of 12117166051 in words is "twelve billion, one hundred seventeen million, one hundred sixty-six thousand, fifty-one".