13144403266 has 8 divisors (see below), whose sum is σ = 19793323980. Its totient is φ = 6546628608.

The previous prime is 13144403263. The next prime is 13144403309. The reversal of 13144403266 is 66230444131.

It can be written as a sum of positive squares in 2 ways, for example, as 10522451241 + 2621952025 = 102579^2 + 51205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13144403263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12785871 + ... + 12786898.

Almost surely, 2^13144403266 is an apocalyptic number.

13144403266 is a deficient number, since it is larger than the sum of its proper divisors (6648920714).

13144403266 is a wasteful number, since it uses less digits than its factorization.

13144403266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25573028.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 13144403266 its reverse (66230444131), we get a palindrome (79374847397).

The spelling of 13144403266 in words is "thirteen billion, one hundred forty-four million, four hundred three thousand, two hundred sixty-six".