266041033643215 has 16 divisors (see below), whose sum is σ = 327126074700096. Its totient is φ = 207584469664000.

The previous prime is 266041033643197. The next prime is 266041033643219. The reversal of 266041033643215 is 512346330140662.

It is not a de Polignac number, because 266041033643215 - 2²⁷ = 266040899425487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266041033643219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178357636 + ... + 179843065.

It is an arithmetic number, because the mean of its divisors is an integer number (20445379668756).

Almost surely, 2^{266041033643215} is an apocalyptic number.

266041033643215 is a deficient number, since it is larger than the sum of its proper divisors (61085041056881).

266041033643215 is a wasteful number, since it uses less digits than its factorization.

266041033643215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358204370.

The product of its (nonzero) digits is 1866240, while the sum is 46.

Adding to 266041033643215 its reverse (512346330140662), we get a palindrome (778387363783877).

The spelling of 266041033643215 in words is "two hundred sixty-six trillion, forty-one billion, thirty-three million, six hundred forty-three thousand, two hundred fifteen".