16808987323 has 4 divisors (see below), whose sum is σ = 16810107160. Its totient is φ = 16807867488.

The previous prime is 16808987297. The next prime is 16808987333. The reversal of 16808987323 is 32378980861.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16808987323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16808987333) 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, 537093 + ... + 567526.

It is an arithmetic number, because the mean of its divisors is an integer number (4202526790).

Almost surely, 2^16808987323 is an apocalyptic number.

16808987323 is a deficient number, since it is larger than the sum of its proper divisors (1119837).

16808987323 is a wasteful number, since it uses less digits than its factorization.

16808987323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119836.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 16808987323 in words is "sixteen billion, eight hundred eight million, nine hundred eighty-seven thousand, three hundred twenty-three".