6663444063 has 8 divisors (see below), whose sum is σ = 9017198208. Its totient is φ = 4375992984.

The previous prime is 6663444043. The next prime is 6663444143. The reversal of 6663444063 is 3604443666.

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

It is not a de Polignac number, because 6663444063 - 2⁵ = 6663444031 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663444013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16575531 + ... + 16575932.

It is an arithmetic number, because the mean of its divisors is an integer number (1127149776).

Almost surely, 2^6663444063 is an apocalyptic number.

6663444063 is a deficient number, since it is larger than the sum of its proper divisors (2353754145).

6663444063 is a wasteful number, since it uses less digits than its factorization.

6663444063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33151533.

The product of its (nonzero) digits is 746496, while the sum is 42.

The square root of 6663444063 is about 81629.9213707817. The cubic root of 6663444063 is about 1881.7687502691.

The spelling of 6663444063 in words is "six billion, six hundred sixty-three million, four hundred forty-four thousand, sixty-three".