9866596320000 has 1080 divisors, whose sum is σ = 40828094827520. Its totient is φ = 2244049920000.

The previous prime is 9866596319969. The next prime is 9866596320041. The reversal of 9866596320000 is 236956689.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2126877681 + ... + 2126882319.

Almost surely, 2^{9866596320000} is an apocalyptic number.

9866596320000 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 9866596320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20414047413760).

9866596320000 is an abundant number, since it is smaller than the sum of its proper divisors (30961498507520).

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

9866596320000 is a wasteful number, since it uses less digits than its factorization.

9866596320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899 (or 4867 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 9866596320000 in words is "nine trillion, eight hundred sixty-six billion, five hundred ninety-six million, three hundred twenty thousand".