266230994413 has 2 divisors, whose sum is σ = 266230994414. Its totient is φ = 266230994412.

The previous prime is 266230994399. The next prime is 266230994417. The reversal of 266230994413 is 314499032662.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174846913609 + 91384080804 = 418147^2 + 302298^2 .

It is a cyclic number.

It is not a de Polignac number, because 266230994413 - 2¹³ = 266230986221 is a prime.

It is a super-2 number, since 2×266230994413² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266230994417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133115497206 + 133115497207.

It is an arithmetic number, because the mean of its divisors is an integer number (133115497207).

Almost surely, 2^266230994413 is an apocalyptic number.

It is an amenable number.

266230994413 is a deficient number, since it is larger than the sum of its proper divisors (1).

266230994413 is an equidigital number, since it uses as much as digits as its factorization.

266230994413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 49.

The spelling of 266230994413 in words is "two hundred sixty-six billion, two hundred thirty million, nine hundred ninety-four thousand, four hundred thirteen".