9664533320 has 64 divisors (see below), whose sum is σ = 24795454320. Its totient is φ = 3358531584.

The previous prime is 9664533313. The next prime is 9664533377. The reversal of 9664533320 is 233354669.

It can be written as a sum of positive squares in 8 ways, for example, as 3002382436 + 6662150884 = 54794^2 + 81622^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537797 + ... + 555476.

Almost surely, 2^9664533320 is an apocalyptic number.

It is an amenable number.

9664533320 is an abundant number, since it is smaller than the sum of its proper divisors (15130921000).

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

9664533320 is a wasteful number, since it uses less digits than its factorization.

9664533320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093314 (or 1093310 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 41.

The square root of 9664533320 is about 98308.3583425133. The cubic root of 9664533320 is about 2130.0687907133.

Adding to 9664533320 its reverse (233354669), we get a palindrome (9897887989).

The spelling of 9664533320 in words is "nine billion, six hundred sixty-four million, five hundred thirty-three thousand, three hundred twenty".