2666444441388 has 96 divisors (see below), whose sum is σ = 7657799202816. Its totient is φ = 703208915712.

The previous prime is 2666444441341. The next prime is 2666444441407. The reversal of 2666444441388 is 8831444446662.

2666444441388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43106370 + ... + 43168182.

It is an arithmetic number, because the mean of its divisors is an integer number (79768741696).

Almost surely, 2^{2666444441388} is an apocalyptic number.

2666444441388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2666444441388 is an abundant number, since it is smaller than the sum of its proper divisors (4991354761428).

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

2666444441388 is a wasteful number, since it uses less digits than its factorization.

2666444441388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101343 (or 101341 counting only the distinct ones).

The product of its digits is 84934656, while the sum is 60.

The spelling of 2666444441388 in words is "two trillion, six hundred sixty-six billion, four hundred forty-four million, four hundred forty-one thousand, three hundred eighty-eight".