12266500451 has 2 divisors, whose sum is σ = 12266500452. Its totient is φ = 12266500450.

The previous prime is 12266500397. The next prime is 12266500481. The reversal of 12266500451 is 15400566221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12266500451 - 2⁶ = 12266500387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12266500481) 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, 6133250225 + 6133250226.

It is an arithmetic number, because the mean of its divisors is an integer number (6133250226).

Almost surely, 2^12266500451 is an apocalyptic number.

12266500451 is a deficient number, since it is larger than the sum of its proper divisors (1).

12266500451 is an equidigital number, since it uses as much as digits as its factorization.

12266500451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 12266500451 in words is "twelve billion, two hundred sixty-six million, five hundred thousand, four hundred fifty-one".