266446353040117 has 2 divisors, whose sum is σ = 266446353040118. Its totient is φ = 266446353040116.

The previous prime is 266446353040099. The next prime is 266446353040139. The reversal of 266446353040117 is 711040353644662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252457810544241 + 13988542495876 = 15888921^2 + 3740126^2 .

It is a cyclic number.

It is not a de Polignac number, because 266446353040117 - 2¹¹ = 266446353038069 is a prime.

It is a super-2 number, since 2×266446353040117² (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 (266446353046117) 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, 133223176520058 + 133223176520059.

It is an arithmetic number, because the mean of its divisors is an integer number (133223176520059).

Almost surely, 2^{266446353040117} is an apocalyptic number.

It is an amenable number.

266446353040117 is a deficient number, since it is larger than the sum of its proper divisors (1).

266446353040117 is an equidigital number, since it uses as much as digits as its factorization.

266446353040117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 266446353040117 in words is "two hundred sixty-six trillion, four hundred forty-six billion, three hundred fifty-three million, forty thousand, one hundred seventeen".