9881681576016 has 80 divisors (see below), whose sum is σ = 26639353829376. Its totient is φ = 3150470851968.

The previous prime is 9881681575939. The next prime is 9881681576101. The reversal of 9881681576016 is 6106751861889.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16691901 + ... + 17273763.

Almost surely, 2^{9881681576016} is an apocalyptic number.

It is an amenable number.

9881681576016 is an abundant number, since it is smaller than the sum of its proper divisors (16757672253360).

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

9881681576016 is a wasteful number, since it uses less digits than its factorization.

9881681576016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597280 (or 597274 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 66.

The spelling of 9881681576016 in words is "nine trillion, eight hundred eighty-one billion, six hundred eighty-one million, five hundred seventy-six thousand, sixteen".