266963053223 has 2 divisors, whose sum is σ = 266963053224. Its totient is φ = 266963053222.

The previous prime is 266963053169. The next prime is 266963053237. The reversal of 266963053223 is 322350369662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266963053223 - 2¹² = 266963049127 is a prime.

It is a super-2 number, since 2×266963053223² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266963053523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133481526611 + 133481526612.

It is an arithmetic number, because the mean of its divisors is an integer number (133481526612).

Almost surely, 2^266963053223 is an apocalyptic number.

266963053223 is a deficient number, since it is larger than the sum of its proper divisors (1).

266963053223 is an equidigital number, since it uses as much as digits as its factorization.

266963053223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 47.

The spelling of 266963053223 in words is "two hundred sixty-six billion, nine hundred sixty-three million, fifty-three thousand, two hundred twenty-three".