9915630800 has 120 divisors (see below), whose sum is σ = 25294035096. Its totient is φ = 3722526720.

The previous prime is 9915630799. The next prime is 9915630839. The reversal of 9915630800 is 80365199.

It can be written as a sum of positive squares in 12 ways, for example, as 2834071696 + 7081559104 = 53236^2 + 84152^2 .

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, 2697764 + ... + 2701436.

Almost surely, 2^9915630800 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 9915630800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12647017548).

9915630800 is an abundant number, since it is smaller than the sum of its proper divisors (15378404296).

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

9915630800 is a wasteful number, since it uses less digits than its factorization.

9915630800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105 (or 4094 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 9915630800 is about 99577.2604563913. The cubic root of 9915630800 is about 2148.3586390985.

Adding to 9915630800 its reverse (80365199), we get a palindrome (9995995999).

The spelling of 9915630800 in words is "nine billion, nine hundred fifteen million, six hundred thirty thousand, eight hundred".