28566248066 has 8 divisors (see below), whose sum is σ = 42850119420. Its totient is φ = 14282874928.

The previous prime is 28566248023. The next prime is 28566248077. The reversal of 28566248066 is 66084266582.

It can be written as a sum of positive squares in 2 ways, for example, as 28402023841 + 164224225 = 168529^2 + 12815^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28566247999 and 28566248017.

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 3 ways as a sum of consecutive naturals, for example, 99140 + ... + 258768.

Almost surely, 2^28566248066 is an apocalyptic number.

28566248066 is a deficient number, since it is larger than the sum of its proper divisors (14283871354).

28566248066 is a wasteful number, since it uses less digits than its factorization.

28566248066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249108.

The product of its (nonzero) digits is 6635520, while the sum is 53.

The spelling of 28566248066 in words is "twenty-eight billion, five hundred sixty-six million, two hundred forty-eight thousand, sixty-six".