16905408844 has 12 divisors (see below), whose sum is σ = 29846275704. Its totient is φ = 8377901504.

The previous prime is 16905408829. The next prime is 16905408853. The reversal of 16905408844 is 44880450961.

It is a happy number.

16905408844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 18700222 + ... + 18701125.

It is an arithmetic number, because the mean of its divisors is an integer number (2487189642).

Almost surely, 2^16905408844 is an apocalyptic number.

It is an amenable number.

16905408844 is a deficient number, since it is larger than the sum of its proper divisors (12940866860).

16905408844 is a wasteful number, since it uses less digits than its factorization.

16905408844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37401464 (or 37401462 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 16905408844 in words is "sixteen billion, nine hundred five million, four hundred eight thousand, eight hundred forty-four".