9664196027920 has 160 divisors (see below), whose sum is σ = 26301536236800. Its totient is φ = 3234038151168.

The previous prime is 9664196027909. The next prime is 9664196028017. The reversal of 9664196027920 is 297206914669.

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 31 ways as a sum of consecutive naturals, for example, 2908146 + ... + 5271214.

It is an arithmetic number, because the mean of its divisors is an integer number (164384601480).

Almost surely, 2^{9664196027920} 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 9664196027920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13150768118400).

9664196027920 is an abundant number, since it is smaller than the sum of its proper divisors (16637340208880).

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

9664196027920 is a wasteful number, since it uses less digits than its factorization.

9664196027920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363265 (or 2363259 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 9664196027920 in words is "nine trillion, six hundred sixty-four billion, one hundred ninety-six million, twenty-seven thousand, nine hundred twenty".