16805936803 has 4 divisors (see below), whose sum is σ = 16809336208. Its totient is φ = 16802537400.

The previous prime is 16805936743. The next prime is 16805936809. The reversal of 16805936803 is 30863950861.

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 16805936803 - 2⁹ = 16805936291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16805936809) 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, 1692276 + ... + 1702177.

It is an arithmetic number, because the mean of its divisors is an integer number (4202334052).

Almost surely, 2^16805936803 is an apocalyptic number.

16805936803 is a deficient number, since it is larger than the sum of its proper divisors (3399405).

16805936803 is an equidigital number, since it uses as much as digits as its factorization.

16805936803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399404.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 16805936803 in words is "sixteen billion, eight hundred five million, nine hundred thirty-six thousand, eight hundred three".