6635664033 has 8 divisors (see below), whose sum is σ = 8868669600. Its totient is φ = 4413217248.

The previous prime is 6635664031. The next prime is 6635664037. The reversal of 6635664033 is 3304665366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6635664033 - 2¹ = 6635664031 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6635664031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2638228 + ... + 2640741.

It is an arithmetic number, because the mean of its divisors is an integer number (1108583700).

Almost surely, 2^6635664033 is an apocalyptic number.

It is an amenable number.

6635664033 is a deficient number, since it is larger than the sum of its proper divisors (2233005567).

6635664033 is a wasteful number, since it uses less digits than its factorization.

6635664033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279391.

The product of its (nonzero) digits is 699840, while the sum is 42.

The square root of 6635664033 is about 81459.5852739259. The cubic root of 6635664033 is about 1879.1500640682.

The spelling of 6635664033 in words is "six billion, six hundred thirty-five million, six hundred sixty-four thousand, thirty-three".