12555641104 has 40 divisors (see below), whose sum is σ = 25662732480. Its totient is φ = 5934441600.

The previous prime is 12555641093. The next prime is 12555641113. The reversal of 12555641104 is 40114655521.

12555641104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12555641104.

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 7 ways as a sum of consecutive naturals, for example, 95349 + ... + 184939.

It is an arithmetic number, because the mean of its divisors is an integer number (641568312).

Almost surely, 2^12555641104 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 12555641104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12831366240).

12555641104 is an abundant number, since it is smaller than the sum of its proper divisors (13107091376).

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

12555641104 is a wasteful number, since it uses less digits than its factorization.

12555641104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90079 (or 90073 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 12555641104 in words is "twelve billion, five hundred fifty-five million, six hundred forty-one thousand, one hundred four".