266253224243 has 4 divisors (see below), whose sum is σ = 277829451408. Its totient is φ = 254676997080.

The previous prime is 266253224203. The next prime is 266253224269. The reversal of 266253224243 is 342422352662.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 266253224243 - 2⁶ = 266253224179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266253224243.

It is not an unprimeable number, because it can be changed into a prime (266253224203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5788113548 + ... + 5788113593.

It is an arithmetic number, because the mean of its divisors is an integer number (69457362852).

Almost surely, 2^266253224243 is an apocalyptic number.

266253224243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

266253224243 is a deficient number, since it is larger than the sum of its proper divisors (11576227165).

266253224243 is a wasteful number, since it uses less digits than its factorization.

266253224243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11576227164.

The product of its digits is 829440, while the sum is 41.

The spelling of 266253224243 in words is "two hundred sixty-six billion, two hundred fifty-three million, two hundred twenty-four thousand, two hundred forty-three".