16844556018 has 16 divisors (see below), whose sum is σ = 33695719200. Its totient is φ = 5613750816.

The previous prime is 16844556013. The next prime is 16844556019. The reversal of 16844556018 is 81065544861.

16844556018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16844556013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 241843 + ... + 303606.

It is an arithmetic number, because the mean of its divisors is an integer number (2105982450).

Almost surely, 2^16844556018 is an apocalyptic number.

16844556018 is an abundant number, since it is smaller than the sum of its proper divisors (16851163182).

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

16844556018 is a wasteful number, since it uses less digits than its factorization.

16844556018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550601.

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 16844556018 in words is "sixteen billion, eight hundred forty-four million, five hundred fifty-six thousand, eighteen".