16044430601903 has 4 divisors (see below), whose sum is σ = 17503015202088. Its totient is φ = 14585846001720.

The previous prime is 16044430601869. The next prime is 16044430601917. The reversal of 16044430601903 is 30910603444061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16044430601903 - 2⁶ = 16044430601839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16044430601963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729292300076 + ... + 729292300097.

It is an arithmetic number, because the mean of its divisors is an integer number (4375753800522).

Almost surely, 2^{16044430601903} is an apocalyptic number.

16044430601903 is a deficient number, since it is larger than the sum of its proper divisors (1458584600185).

16044430601903 is a wasteful number, since it uses less digits than its factorization.

16044430601903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458584600184.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 16044430601903 in words is "sixteen trillion, forty-four billion, four hundred thirty million, six hundred one thousand, nine hundred three".