13044442216 has 16 divisors (see below), whose sum is σ = 26339739300. Its totient is φ = 6020511744.

The previous prime is 13044442199. The next prime is 13044442217. The reversal of 13044442216 is 61224444031.

It can be written as a sum of positive squares in 2 ways, for example, as 12802017316 + 242424900 = 113146^2 + 15570^2 .

It is not an unprimeable number, because it can be changed into a prime (13044442217) 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, 62713561 + ... + 62713768.

Almost surely, 2^13044442216 is an apocalyptic number.

It is an amenable number.

13044442216 is an abundant number, since it is smaller than the sum of its proper divisors (13295297084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13044442216 is a wasteful number, since it uses less digits than its factorization.

13044442216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125427348 (or 125427344 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 13044442216 its reverse (61224444031), we get a palindrome (74268886247).

The spelling of 13044442216 in words is "thirteen billion, forty-four million, four hundred forty-two thousand, two hundred sixteen".