9965594900 has 18 divisors (see below), whose sum is σ = 21625341150. Its totient is φ = 3986237920.

The previous prime is 9965594843. The next prime is 9965594917. The reversal of 9965594900 is 94955699.

It can be written as a sum of positive squares in 3 ways, for example, as 3468267664 + 6497327236 = 58892^2 + 80606^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49827875 + ... + 49828074.

Almost surely, 2^9965594900 is an apocalyptic number.

It is an amenable number.

9965594900 is an abundant number, since it is smaller than the sum of its proper divisors (11659746250).

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

9965594900 is a wasteful number, since it uses less digits than its factorization.

9965594900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99655963 (or 99655956 counting only the distinct ones).

The product of its (nonzero) digits is 3936600, while the sum is 56.

The square root of 9965594900 is about 99827.8262810525. The cubic root of 9965594900 is about 2151.9610663184.

The spelling of 9965594900 in words is "nine billion, nine hundred sixty-five million, five hundred ninety-four thousand, nine hundred".