6680663 has 8 divisors (see below), whose sum is σ = 7466256. Its totient is φ = 5924800.

The previous prime is 6680657. The next prime is 6680689. The reversal of 6680663 is 3660866.

6680663 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6680663 - 2¹⁰ = 6679639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680563) 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, 6956 + ... + 7857.

It is an arithmetic number, because the mean of its divisors is an integer number (933282).

Almost surely, 2^6680663 is an apocalyptic number.

6680663 is a deficient number, since it is larger than the sum of its proper divisors (785593).

6680663 is a wasteful number, since it uses less digits than its factorization.

6680663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14865.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 6680663 is about 2584.6978546824. The cubic root of 6680663 is about 188.3388242497.

The spelling of 6680663 in words is "six million, six hundred eighty thousand, six hundred sixty-three".