16444363320444 has 24 divisors (see below), whose sum is σ = 38801306713680. Its totient is φ = 5419865064064.

The previous prime is 16444363320439. The next prime is 16444363320523. The reversal of 16444363320444 is 44402336344461.

It is a junction number, because it is equal to n+sod(n) for n = 16444363320393 and 16444363320402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7698670899 + ... + 7698673034.

It is an arithmetic number, because the mean of its divisors is an integer number (1616721113070).

Almost surely, 2^{16444363320444} is an apocalyptic number.

It is an amenable number.

16444363320444 is an abundant number, since it is smaller than the sum of its proper divisors (22356943393236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16444363320444 is a wasteful number, since it uses less digits than its factorization.

16444363320444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15397344029 (or 15397344027 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 48.

The spelling of 16444363320444 in words is "sixteen trillion, four hundred forty-four billion, three hundred sixty-three million, three hundred twenty thousand, four hundred forty-four".