13133440464 has 120 divisors (see below), whose sum is σ = 35201053536. Its totient is φ = 4216800000.

The previous prime is 13133440429. The next prime is 13133440499. The reversal of 13133440464 is 46404433131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13133440429) and next prime (13133440499).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52324339 + ... + 52324589.

Almost surely, 2^13133440464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13133440464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17600526768).

13133440464 is an abundant number, since it is smaller than the sum of its proper divisors (22067613072).

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

13133440464 is a wasteful number, since it uses less digits than its factorization.

13133440464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 13133440464 its reverse (46404433131), we get a palindrome (59537873595).

The spelling of 13133440464 in words is "thirteen billion, one hundred thirty-three million, four hundred forty thousand, four hundred sixty-four".