9982661806 has 16 divisors (see below), whose sum is σ = 16222407264. Its totient is φ = 4579791264.

The previous prime is 9982661797. The next prime is 9982661813. The reversal of 9982661806 is 6081662899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145205 + ... + 1153888.

It is an arithmetic number, because the mean of its divisors is an integer number (1013900454).

Almost surely, 2^9982661806 is an apocalyptic number.

9982661806 is a deficient number, since it is larger than the sum of its proper divisors (6239745458).

9982661806 is a wasteful number, since it uses less digits than its factorization.

9982661806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299275.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The square root of 9982661806 is about 99913.2714207677. The cubic root of 9982661806 is about 2153.1888361718.

The spelling of 9982661806 in words is "nine billion, nine hundred eighty-two million, six hundred sixty-one thousand, eight hundred six".