9665585440 has 96 divisors (see below), whose sum is σ = 26454798720. Its totient is φ = 3268491264.

The previous prime is 9665585431. The next prime is 9665585441. The reversal of 9665585440 is 445855669.

It is not an unprimeable number, because it can be changed into a prime (9665585441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22651 + ... + 140869.

It is an arithmetic number, because the mean of its divisors is an integer number (275570820).

Almost surely, 2^9665585440 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 9665585440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13227399360).

9665585440 is an abundant number, since it is smaller than the sum of its proper divisors (16789213280).

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

9665585440 is a wasteful number, since it uses less digits than its factorization.

9665585440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118314 (or 118306 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 52.

The square root of 9665585440 is about 98313.7093186906. The cubic root of 9665585440 is about 2130.1460838628.

The spelling of 9665585440 in words is "nine billion, six hundred sixty-five million, five hundred eighty-five thousand, four hundred forty".