66088866 has 8 divisors (see below), whose sum is σ = 132177744. Its totient is φ = 22029620.

The previous prime is 66088861. The next prime is 66088873. The reversal of 66088866 is 66888066.

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

66088866 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66088861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5507400 + ... + 5507411.

It is an arithmetic number, because the mean of its divisors is an integer number (16522218).

Almost surely, 2^66088866 is an apocalyptic number.

66088866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66088866 is a wasteful number, since it uses less digits than its factorization.

66088866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11014816.

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 66088866 is about 8129.5058890439. The cubic root of 66088866 is about 404.3052989171.

The spelling of 66088866 in words is "sixty-six million, eighty-eight thousand, eight hundred sixty-six".