14287268439666 has 128 divisors (see below), whose sum is σ = 33986730240000. Its totient is φ = 4438986209280.

The previous prime is 14287268439629. The next prime is 14287268439721. The reversal of 14287268439666 is 66693486278241.

It is a super-2 number, since 2×14287268439666² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14287268439594 and 14287268439603.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19495530 + ... + 20215098.

It is an arithmetic number, because the mean of its divisors is an integer number (265521330000).

Almost surely, 2^{14287268439666} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14287268439666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16993365120000).

14287268439666 is an abundant number, since it is smaller than the sum of its proper divisors (19699461800334).

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

14287268439666 is a wasteful number, since it uses less digits than its factorization.

14287268439666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720049 (or 720043 counting only the distinct ones).

The product of its digits is 1003290624, while the sum is 72.

The spelling of 14287268439666 in words is "fourteen trillion, two hundred eighty-seven billion, two hundred sixty-eight million, four hundred thirty-nine thousand, six hundred sixty-six".