12266641371808 has 96 divisors (see below), whose sum is σ = 24966033684480. Its totient is φ = 5926657351680.

The previous prime is 12266641371781. The next prime is 12266641371821. The reversal of 12266641371808 is 80817314666221.

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 15 ways as a sum of consecutive naturals, for example, 2486646910 + ... + 2486651842.

It is an arithmetic number, because the mean of its divisors is an integer number (260062850880).

Almost surely, 2^{12266641371808} 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 12266641371808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12483016842240).

12266641371808 is an abundant number, since it is smaller than the sum of its proper divisors (12699392312672).

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

12266641371808 is a wasteful number, since it uses less digits than its factorization.

12266641371808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8190 (or 8182 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 12266641371808 in words is "twelve trillion, two hundred sixty-six billion, six hundred forty-one million, three hundred seventy-one thousand, eight hundred eight".