9663055872 has 384 divisors, whose sum is σ = 29248128000. Its totient is φ = 2822307840.

The previous prime is 9663055861. The next prime is 9663055873. The reversal of 9663055872 is 2785503669.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9663055873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158410722 + ... + 158410782.

It is an arithmetic number, because the mean of its divisors is an integer number (76167000).

Almost surely, 2^9663055872 is an apocalyptic number.

9663055872 is a gapful number since it is divisible by the number (92) 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 9663055872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14624064000).

9663055872 is an abundant number, since it is smaller than the sum of its proper divisors (19585072128).

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

9663055872 is a wasteful number, since it uses less digits than its factorization.

9663055872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The square root of 9663055872 is about 98300.8436993295. The cubic root of 9663055872 is about 2129.9602417142.

The spelling of 9663055872 in words is "nine billion, six hundred sixty-three million, fifty-five thousand, eight hundred seventy-two".