12855564084 has 192 divisors, whose sum is σ = 36670233600. Its totient is φ = 3454617600.

The previous prime is 12855564079. The next prime is 12855564131. The reversal of 12855564084 is 48046555821.

12855564084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 8995482 + ... + 8996910.

It is an arithmetic number, because the mean of its divisors is an integer number (190990800).

Almost surely, 2^12855564084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12855564084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18335116800).

12855564084 is an abundant number, since it is smaller than the sum of its proper divisors (23814669516).

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

12855564084 is a wasteful number, since it uses less digits than its factorization.

12855564084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 48.

The spelling of 12855564084 in words is "twelve billion, eight hundred fifty-five million, five hundred sixty-four thousand, eighty-four".