6630663 has 32 divisors (see below), whose sum is σ = 10293696. Its totient is φ = 3760128.

The previous prime is 6630661. The next prime is 6630691. The reversal of 6630663 is 3660366.

It is not a de Polignac number, because 6630663 - 2¹ = 6630661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6630663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6630661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48331 + ... + 48467.

It is an arithmetic number, because the mean of its divisors is an integer number (321678).

Almost surely, 2^6630663 is an apocalyptic number.

6630663 is a deficient number, since it is larger than the sum of its proper divisors (3663033).

6630663 is a wasteful number, since it uses less digits than its factorization.

6630663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 6630663 is about 2575.0073786302. The cubic root of 6630663 is about 187.8677865490.

The spelling of 6630663 in words is "six million, six hundred thirty thousand, six hundred sixty-three".