16217280899 has 2 divisors, whose sum is σ = 16217280900. Its totient is φ = 16217280898.

The previous prime is 16217280889. The next prime is 16217280913. The reversal of 16217280899 is 99808271261.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16217280899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16217280899.

It is not a weakly prime, because it can be changed into another prime (16217280829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8108640449 + 8108640450.

It is an arithmetic number, because the mean of its divisors is an integer number (8108640450).

Almost surely, 2^16217280899 is an apocalyptic number.

16217280899 is a deficient number, since it is larger than the sum of its proper divisors (1).

16217280899 is an equidigital number, since it uses as much as digits as its factorization.

16217280899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 53.

The spelling of 16217280899 in words is "sixteen billion, two hundred seventeen million, two hundred eighty thousand, eight hundred ninety-nine".