266044426223 has 4 divisors (see below), whose sum is σ = 266088501240. Its totient is φ = 266000351208.

The previous prime is 266044426213. The next prime is 266044426243. The reversal of 266044426223 is 322624440662.

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 266044426223 - 2²⁴ = 266027649007 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 (266044426213) 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, 22028453 + ... + 22040526.

It is an arithmetic number, because the mean of its divisors is an integer number (66522125310).

Almost surely, 2^266044426223 is an apocalyptic number.

266044426223 is a deficient number, since it is larger than the sum of its proper divisors (44075017).

266044426223 is an equidigital number, since it uses as much as digits as its factorization.

266044426223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44075016.

The product of its (nonzero) digits is 663552, while the sum is 41.

Adding to 266044426223 its reverse (322624440662), we get a palindrome (588668866885).

The spelling of 266044426223 in words is "two hundred sixty-six billion, forty-four million, four hundred twenty-six thousand, two hundred twenty-three".