9888016680 has 320 divisors, whose sum is σ = 36331130880. Its totient is φ = 2401228800.

The previous prime is 9888016667. The next prime is 9888016759. The reversal of 9888016680 is 866108889.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1704585 + ... + 1710375.

It is an arithmetic number, because the mean of its divisors is an integer number (113534784).

Almost surely, 2^9888016680 is an apocalyptic number.

9888016680 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9888016680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18165565440).

9888016680 is an abundant number, since it is smaller than the sum of its proper divisors (26443114200).

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

9888016680 is a wasteful number, since it uses less digits than its factorization.

9888016680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862 (or 5849 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The square root of 9888016680 is about 99438.5070282132. The cubic root of 9888016680 is about 2146.3624578028.

The spelling of 9888016680 in words is "nine billion, eight hundred eighty-eight million, sixteen thousand, six hundred eighty".