16445056444 has 6 divisors (see below), whose sum is σ = 28778848784. Its totient is φ = 8222528220.

The previous prime is 16445056427. The next prime is 16445056447. The reversal of 16445056444 is 44465054461.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16445056444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16445056447) 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, 2055632052 + ... + 2055632059.

Almost surely, 2^16445056444 is an apocalyptic number.

It is an amenable number.

16445056444 is a deficient number, since it is larger than the sum of its proper divisors (12333792340).

16445056444 is a wasteful number, since it uses less digits than its factorization.

16445056444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111264115 (or 4111264113 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 43.

The spelling of 16445056444 in words is "sixteen billion, four hundred forty-five million, fifty-six thousand, four hundred forty-four".