16866837016699 has 4 divisors (see below), whose sum is σ = 16882046068320. Its totient is φ = 16851627965080.

The previous prime is 16866837016697. The next prime is 16866837016717. The reversal of 16866837016699 is 99661073866861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16866837016699 - 2¹ = 16866837016697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16866837016691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7604524147 + ... + 7604526364.

It is an arithmetic number, because the mean of its divisors is an integer number (4220511517080).

Almost surely, 2^{16866837016699} is an apocalyptic number.

16866837016699 is a deficient number, since it is larger than the sum of its proper divisors (15209051621).

16866837016699 is a wasteful number, since it uses less digits than its factorization.

16866837016699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15209051620.

The product of its (nonzero) digits is 846526464, while the sum is 76.

The spelling of 16866837016699 in words is "sixteen trillion, eight hundred sixty-six billion, eight hundred thirty-seven million, sixteen thousand, six hundred ninety-nine".