16844438016 has 120 divisors (see below), whose sum is σ = 55559179104. Its totient is φ = 4812687360.

The previous prime is 16844437993. The next prime is 16844438021. The reversal of 16844438016 is 61083444861.

16844438016 is a `hidden beast` number, since 168 + 44 + 438 + 0 + 16 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228850 + ... + 293361.

Almost surely, 2^16844438016 is an apocalyptic number.

16844438016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16844438016 is an abundant number, since it is smaller than the sum of its proper divisors (38714741088).

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

16844438016 is an equidigital number, since it uses as much as digits as its factorization.

16844438016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522242 (or 522223 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 16844438016 in words is "sixteen billion, eight hundred forty-four million, four hundred thirty-eight thousand, sixteen".