32666065506 has 64 divisors (see below), whose sum is σ = 74328883200. Its totient is φ = 10628383248.

The previous prime is 32666065499. The next prime is 32666065507. The reversal of 32666065506 is 60556066623.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32666065507) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4359295 + ... + 4366781.

It is an arithmetic number, because the mean of its divisors is an integer number (1161388800).

Almost surely, 2^32666065506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32666065506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37164441600).

32666065506 is an abundant number, since it is smaller than the sum of its proper divisors (41662817694).

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

32666065506 is a wasteful number, since it uses less digits than its factorization.

32666065506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9420 (or 9414 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 32666065506 in words is "thirty-two billion, six hundred sixty-six million, sixty-five thousand, five hundred six".