13331240056 has 8 divisors (see below), whose sum is σ = 24996075120. Its totient is φ = 6665620024.

The previous prime is 13331240051. The next prime is 13331240063. The reversal of 13331240056 is 65004213331.

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

It is a super-2 number, since 2×13331240056² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331240051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 833202496 + ... + 833202511.

It is an arithmetic number, because the mean of its divisors is an integer number (3124509390).

Almost surely, 2^13331240056 is an apocalyptic number.

It is an amenable number.

13331240056 is a deficient number, since it is larger than the sum of its proper divisors (11664835064).

13331240056 is a wasteful number, since it uses less digits than its factorization.

13331240056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666405013 (or 1666405009 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 13331240056 its reverse (65004213331), we get a palindrome (78335453387).

The spelling of 13331240056 in words is "thirteen billion, three hundred thirty-one million, two hundred forty thousand, fifty-six".