32666489568 has 384 divisors, whose sum is σ = 101931540480. Its totient is φ = 10160640000.

The previous prime is 32666489563. The next prime is 32666489579. The reversal of 32666489568 is 86598466623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32666489563) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 165819646 + ... + 165819842.

It is an arithmetic number, because the mean of its divisors is an integer number (265446720).

Almost surely, 2^32666489568 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 32666489568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50965770240).

32666489568 is an abundant number, since it is smaller than the sum of its proper divisors (69265050912).

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

32666489568 is a wasteful number, since it uses less digits than its factorization.

32666489568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 425 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 63.

The spelling of 32666489568 in words is "thirty-two billion, six hundred sixty-six million, four hundred eighty-nine thousand, five hundred sixty-eight".