16889036905 has 16 divisors (see below), whose sum is σ = 21836485440. Its totient is φ = 12465816768.

The previous prime is 16889036833. The next prime is 16889036911. The reversal of 16889036905 is 50963098861.

It is a happy number.

16889036905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16889036905 - 2⁷ = 16889036777 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73026 + ... + 197764.

It is an arithmetic number, because the mean of its divisors is an integer number (1364780340).

Almost surely, 2^16889036905 is an apocalyptic number.

It is an amenable number.

16889036905 is a deficient number, since it is larger than the sum of its proper divisors (4947448535).

16889036905 is a wasteful number, since it uses less digits than its factorization.

16889036905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126840.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 16889036905 in words is "sixteen billion, eight hundred eighty-nine million, thirty-six thousand, nine hundred five".