16663840382 has 32 divisors (see below), whose sum is σ = 29089020672. Its totient is φ = 7012220544.

The previous prime is 16663840379. The next prime is 16663840397. The reversal of 16663840382 is 28304836661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120053 + ... + 218495.

It is an arithmetic number, because the mean of its divisors is an integer number (909031896).

Almost surely, 2^16663840382 is an apocalyptic number.

16663840382 is a deficient number, since it is larger than the sum of its proper divisors (12425180290).

16663840382 is a wasteful number, since it uses less digits than its factorization.

16663840382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98672.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 16663840382 in words is "sixteen billion, six hundred sixty-three million, eight hundred forty thousand, three hundred eighty-two".