14172272478666 has 192 divisors, whose sum is σ = 33424717277952. Its totient is φ = 4327834807296.

The previous prime is 14172272478659. The next prime is 14172272478671. The reversal of 14172272478666 is 66687427227141.

It is a happy number.

14172272478666 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 95 ways as a sum of consecutive naturals, for example, 2257806720 + ... + 2257812996.

It is an arithmetic number, because the mean of its divisors is an integer number (174087069156).

Almost surely, 2^{14172272478666} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14172272478666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16712358638976).

14172272478666 is an abundant number, since it is smaller than the sum of its proper divisors (19252444799286).

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

14172272478666 is a wasteful number, since it uses less digits than its factorization.

14172272478666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8797 (or 8794 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 63.

The spelling of 14172272478666 in words is "fourteen trillion, one hundred seventy-two billion, two hundred seventy-two million, four hundred seventy-eight thousand, six hundred sixty-six".