12081028141818 has 80 divisors (see below), whose sum is σ = 27349287482880. Its totient is φ = 3985561260000.

The previous prime is 12081028141813. The next prime is 12081028141843. The reversal of 12081028141818 is 81814182018021.

12081028141818 is a `hidden beast` number, since 1 + 208 + 1 + 0 + 28 + 1 + 418 + 1 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (12081028141813) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41594743 + ... + 41884181.

It is an arithmetic number, because the mean of its divisors is an integer number (341866093536).

Almost surely, 2^{12081028141818} is an apocalyptic number.

12081028141818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12081028141818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13674643741440).

12081028141818 is an abundant number, since it is smaller than the sum of its proper divisors (15268259341062).

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

12081028141818 is a wasteful number, since it uses less digits than its factorization.

12081028141818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292105 (or 292096 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 45.

The spelling of 12081028141818 in words is "twelve trillion, eighty-one billion, twenty-eight million, one hundred forty-one thousand, eight hundred eighteen".