18085416444203 has 8 divisors (see below), whose sum is σ = 18189404308800. Its totient is φ = 17981461380168.

The previous prime is 18085416444197. The next prime is 18085416444281. The reversal of 18085416444203 is 30244461458081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18085416444203 - 2¹⁸ = 18085416182059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18085419444203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7093793 + ... + 9300146.

It is an arithmetic number, because the mean of its divisors is an integer number (2273675538600).

Almost surely, 2^{18085416444203} is an apocalyptic number.

18085416444203 is a deficient number, since it is larger than the sum of its proper divisors (103987864597).

18085416444203 is a wasteful number, since it uses less digits than its factorization.

18085416444203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16400281.

The product of its (nonzero) digits is 2949120, while the sum is 50.

The spelling of 18085416444203 in words is "eighteen trillion, eighty-five billion, four hundred sixteen million, four hundred forty-four thousand, two hundred three".