13335311144 has 8 divisors (see below), whose sum is σ = 25003708410. Its totient is φ = 6667655568.

The previous prime is 13335311113. The next prime is 13335311149. The reversal of 13335311144 is 44111353331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10487808100 + 2847503044 = 102410^2 + 53362^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13335311149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 833456939 + ... + 833456954.

Almost surely, 2^13335311144 is an apocalyptic number.

It is an amenable number.

13335311144 is a deficient number, since it is larger than the sum of its proper divisors (11668397266).

13335311144 is a wasteful number, since it uses less digits than its factorization.

13335311144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666913899 (or 1666913895 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

Adding to 13335311144 its reverse (44111353331), we get a palindrome (57446664475).

The spelling of 13335311144 in words is "thirteen billion, three hundred thirty-five million, three hundred eleven thousand, one hundred forty-four".