28666366682112 has 264 divisors, whose sum is σ = 84544311923136. Its totient is φ = 9352850817024.

The previous prime is 28666366682069. The next prime is 28666366682141. The reversal of 28666366682112 is 21128666366682.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 28666366682112.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96795253 + ... + 97090955.

Almost surely, 2^{28666366682112} 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 28666366682112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42272155961568).

28666366682112 is an abundant number, since it is smaller than the sum of its proper divisors (55877945241024).

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

28666366682112 is a wasteful number, since it uses less digits than its factorization.

28666366682112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295953 (or 295932 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 63.

The spelling of 28666366682112 in words is "twenty-eight trillion, six hundred sixty-six billion, three hundred sixty-six million, six hundred eighty-two thousand, one hundred twelve".