32556381664884 has 384 divisors, whose sum is σ = 101508641095680. Its totient is φ = 7866107251200.

The previous prime is 32556381664837. The next prime is 32556381664907. The reversal of 32556381664884 is 48846618365523.

32556381664884 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 365769874 + ... + 365858870.

It is an arithmetic number, because the mean of its divisors is an integer number (264345419520).

Almost surely, 2^{32556381664884} 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 32556381664884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50754320547840).

32556381664884 is an abundant number, since it is smaller than the sum of its proper divisors (68952259430796).

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

32556381664884 is a wasteful number, since it uses less digits than its factorization.

32556381664884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89419 (or 89417 counting only the distinct ones).

The product of its digits is 796262400, while the sum is 69.

The spelling of 32556381664884 in words is "thirty-two trillion, five hundred fifty-six billion, three hundred eighty-one million, six hundred sixty-four thousand, eight hundred eighty-four".