266968329228917 has 2 divisors, whose sum is σ = 266968329228918. Its totient is φ = 266968329228916.

The previous prime is 266968329228857. The next prime is 266968329229009. The reversal of 266968329228917 is 719822923869662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175095509957956 + 91872819270961 = 13232366^2 + 9585031^2 .

It is a cyclic number.

It is not a de Polignac number, because 266968329228917 - 2²² = 266968325034613 is a prime.

It is a super-2 number, since 2×266968329228917² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266968329228017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133484164614458 + 133484164614459.

It is an arithmetic number, because the mean of its divisors is an integer number (133484164614459).

Almost surely, 2^{266968329228917} is an apocalyptic number.

It is an amenable number.

266968329228917 is a deficient number, since it is larger than the sum of its proper divisors (1).

266968329228917 is an equidigital number, since it uses as much as digits as its factorization.

266968329228917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386105856, while the sum is 80.

The spelling of 266968329228917 in words is "two hundred sixty-six trillion, nine hundred sixty-eight billion, three hundred twenty-nine million, two hundred twenty-eight thousand, nine hundred seventeen".