16808987333 has 2 divisors, whose sum is σ = 16808987334. Its totient is φ = 16808987332.

The previous prime is 16808987297. The next prime is 16808987339. The reversal of 16808987333 is 33378980861.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9799614049 + 7009373284 = 98993^2 + 83722^2 .

It is a cyclic number.

It is not a de Polignac number, because 16808987333 - 2⁸ = 16808987077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16808987339) by changing a digit.

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 as a sum of consecutive naturals, namely, 8404493666 + 8404493667.

It is an arithmetic number, because the mean of its divisors is an integer number (8404493667).

Almost surely, 2^16808987333 is an apocalyptic number.

It is an amenable number.

16808987333 is a deficient number, since it is larger than the sum of its proper divisors (1).

16808987333 is an equidigital number, since it uses as much as digits as its factorization.

16808987333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 16808987333 in words is "sixteen billion, eight hundred eight million, nine hundred eighty-seven thousand, three hundred thirty-three".