6635680606 has 16 divisors (see below), whose sum is σ = 10001157120. Its totient is φ = 3301978680.

The previous prime is 6635680591. The next prime is 6635680607. The reversal of 6635680606 is 6060865366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6635680607) 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, 1101655 + ... + 1107661.

It is an arithmetic number, because the mean of its divisors is an integer number (625072320).

Almost surely, 2^6635680606 is an apocalyptic number.

6635680606 is a deficient number, since it is larger than the sum of its proper divisors (3365476514).

6635680606 is a wasteful number, since it uses less digits than its factorization.

6635680606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8559.

The product of its (nonzero) digits is 933120, while the sum is 46.

The square root of 6635680606 is about 81459.6869991531. The cubic root of 6635680606 is about 1879.1516284999.

It can be divided in two parts, 6635 and 680606, that added together give a square (687241 = 829²).

The spelling of 6635680606 in words is "six billion, six hundred thirty-five million, six hundred eighty thousand, six hundred six".