6640013033313 has 32 divisors (see below), whose sum is σ = 9853674872832. Its totient is φ = 3943431729600.

The previous prime is 6640013033281. The next prime is 6640013033321. The reversal of 6640013033313 is 3133303100466.

It is not a de Polignac number, because 6640013033313 - 2⁵ = 6640013033281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (6640013033713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7439406 + ... + 8284007.

It is an arithmetic number, because the mean of its divisors is an integer number (307927339776).

Almost surely, 2^{6640013033313} is an apocalyptic number.

It is an amenable number.

6640013033313 is a deficient number, since it is larger than the sum of its proper divisors (3213661839519).

6640013033313 is a wasteful number, since it uses less digits than its factorization.

6640013033313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15723685.

The product of its (nonzero) digits is 34992, while the sum is 33.

Adding to 6640013033313 its reverse (3133303100466), we get a palindrome (9773316133779).

The spelling of 6640013033313 in words is "six trillion, six hundred forty billion, thirteen million, thirty-three thousand, three hundred thirteen".