16559839411872 has 48 divisors (see below), whose sum is σ = 44289759195360. Its totient is φ = 5415796535552.

The previous prime is 16559839411867. The next prime is 16559839411879. The reversal of 16559839411872 is 27811493895561.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 16559839411797 and 16559839411806.

It is not an unprimeable number, because it can be changed into a prime (16559839411879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1627337622 + ... + 1627347797.

It is an arithmetic number, because the mean of its divisors is an integer number (922703316570).

Almost surely, 2^{16559839411872} is an apocalyptic number.

16559839411872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16559839411872 is an abundant number, since it is smaller than the sum of its proper divisors (27729919783488).

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

16559839411872 is a wasteful number, since it uses less digits than its factorization.

16559839411872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254685485 (or 3254685477 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 69.

The spelling of 16559839411872 in words is "sixteen trillion, five hundred fifty-nine billion, eight hundred thirty-nine million, four hundred eleven thousand, eight hundred seventy-two".