266340238442133 has 16 divisors (see below), whose sum is σ = 367862958321600. Its totient is φ = 171205409168640.

The previous prime is 266340238442123. The next prime is 266340238442149. The reversal of 266340238442133 is 331244832043662.

It is not a de Polignac number, because 266340238442133 - 2³⁸ = 266065360535189 is a prime.

It is a super-2 number, since 2×266340238442133² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266340238442123) 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, 2071236148 + ... + 2071364733.

It is an arithmetic number, because the mean of its divisors is an integer number (22991434895100).

Almost surely, 2^{266340238442133} is an apocalyptic number.

It is an amenable number.

266340238442133 is a deficient number, since it is larger than the sum of its proper divisors (101522719879467).

266340238442133 is a wasteful number, since it uses less digits than its factorization.

266340238442133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142601652.

The product of its (nonzero) digits is 11943936, while the sum is 51.

The spelling of 266340238442133 in words is "two hundred sixty-six trillion, three hundred forty billion, two hundred thirty-eight million, four hundred forty-two thousand, one hundred thirty-three".