32781636016 has 30 divisors (see below), whose sum is σ = 67033236012. Its totient is φ = 15528140640.

The previous prime is 32781635987. The next prime is 32781636077. The reversal of 32781636016 is 61063618723.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2831970 + ... + 2843521.

Almost surely, 2^32781636016 is an apocalyptic number.

It is an amenable number.

32781636016 is an abundant number, since it is smaller than the sum of its proper divisors (34251599996).

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

32781636016 is a wasteful number, since it uses less digits than its factorization.

32781636016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5675537 (or 5675512 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 32781636016 in words is "thirty-two billion, seven hundred eighty-one million, six hundred thirty-six thousand, sixteen".