266968329229009 has 2 divisors, whose sum is σ = 266968329229010. Its totient is φ = 266968329229008.

The previous prime is 266968329228917. The next prime is 266968329229037. The reversal of 266968329229009 is 900922923869662.

266968329229009 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 can be written as a sum of positive squares in only one way, i.e., 186256576332225 + 80711752896784 = 13647585^2 + 8983972^2 .

It is a cyclic number.

It is not a de Polignac number, because 266968329229009 - 2²⁷ = 266968195011281 is a prime.

It is a super-2 number, since 2×266968329229009² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (266968329289009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133484164614504 + 133484164614505.

It is an arithmetic number, because the mean of its divisors is an integer number (133484164614505).

Almost surely, 2^{266968329229009} is an apocalyptic number.

It is an amenable number.

266968329229009 is a deficient number, since it is larger than the sum of its proper divisors (1).

266968329229009 is an equidigital number, since it uses as much as digits as its factorization.

266968329229009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544195584, while the sum is 73.

The spelling of 266968329229009 in words is "two hundred sixty-six trillion, nine hundred sixty-eight billion, three hundred twenty-nine million, two hundred twenty-nine thousand, nine".