266006665221127 has 2 divisors, whose sum is σ = 266006665221128. Its totient is φ = 266006665221126.

The previous prime is 266006665221119. The next prime is 266006665221371. The reversal of 266006665221127 is 721122566600662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266006665221127 - 2³ = 266006665221119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266006665221107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133003332610563 + 133003332610564.

It is an arithmetic number, because the mean of its divisors is an integer number (133003332610564).

Almost surely, 2^{266006665221127} is an apocalyptic number.

266006665221127 is a deficient number, since it is larger than the sum of its proper divisors (1).

266006665221127 is an equidigital number, since it uses as much as digits as its factorization.

266006665221127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 266006665221127 in words is "two hundred sixty-six trillion, six billion, six hundred sixty-five million, two hundred twenty-one thousand, one hundred twenty-seven".