9665168256 has 192 divisors, whose sum is σ = 28939950000. Its totient is φ = 3092447232.

The previous prime is 9665168243. The next prime is 9665168263. The reversal of 9665168256 is 6528615669.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6446995 + ... + 6448493.

Almost surely, 2^9665168256 is an apocalyptic number.

9665168256 is a gapful number since it is divisible by the number (96) 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 9665168256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14469975000).

9665168256 is an abundant number, since it is smaller than the sum of its proper divisors (19274781744).

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

9665168256 is a wasteful number, since it uses less digits than its factorization.

9665168256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1726 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 9665168256 is about 98311.5875978005. The cubic root of 9665168256 is about 2130.1154364469.

The spelling of 9665168256 in words is "nine billion, six hundred sixty-five million, one hundred sixty-eight thousand, two hundred fifty-six".