6660843606 has 24 divisors (see below), whose sum is σ = 14449438224. Its totient is φ = 2217571920.

The previous prime is 6660843589. The next prime is 6660843611. The reversal of 6660843606 is 6063480666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 210586 + ... + 240141.

It is an arithmetic number, because the mean of its divisors is an integer number (602059926).

Almost surely, 2^6660843606 is an apocalyptic number.

6660843606 is an abundant number, since it is smaller than the sum of its proper divisors (7788594618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6660843606 is a wasteful number, since it uses less digits than its factorization.

6660843606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451556 (or 451553 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 6660843606 is about 81613.9914843037. The cubic root of 6660843606 is about 1881.5239271526.

The spelling of 6660843606 in words is "six billion, six hundred sixty million, eight hundred forty-three thousand, six hundred six".