6633641313 has 16 divisors (see below), whose sum is σ = 10583587840. Its totient is φ = 4082240592.

The previous prime is 6633641309. The next prime is 6633641351. The reversal of 6633641313 is 3131463366.

6633641313 is a `hidden beast` number, since 6 + 6 + 3 + 3 + 641 + 3 + 1 + 3 = 666.

It is not a de Polignac number, because 6633641313 - 2² = 6633641309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6633641353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9449281 + ... + 9449982.

It is an arithmetic number, because the mean of its divisors is an integer number (661474240).

Almost surely, 2^6633641313 is an apocalyptic number.

It is an amenable number.

6633641313 is a deficient number, since it is larger than the sum of its proper divisors (3949946527).

6633641313 is a wasteful number, since it uses less digits than its factorization.

6633641313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18899285 (or 18899279 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

The square root of 6633641313 is about 81447.1688458230. The cubic root of 6633641313 is about 1878.9591070076.

The spelling of 6633641313 in words is "six billion, six hundred thirty-three million, six hundred forty-one thousand, three hundred thirteen".