9664032285 has 24 divisors (see below), whose sum is σ = 16763403384. Its totient is φ = 5150330880.

The previous prime is 9664032281. The next prime is 9664032289. The reversal of 9664032285 is 5822304669.

9664032285 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9664032281) and next prime (9664032289).

It can be written as a sum of positive squares in 4 ways, for example, as 192265956 + 9471766329 = 13866^2 + 97323^2 .

It is not a de Polignac number, because 9664032285 - 2² = 9664032281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9664032285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9664032281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17652 + ... + 140141.

It is an arithmetic number, because the mean of its divisors is an integer number (698475141).

Almost surely, 2^9664032285 is an apocalyptic number.

It is an amenable number.

9664032285 is a deficient number, since it is larger than the sum of its proper divisors (7099371099).

9664032285 is a wasteful number, since it uses less digits than its factorization.

9664032285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159165 (or 159162 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 9664032285 is about 98305.8100266714. The cubic root of 9664032285 is about 2130.0319806082.

The spelling of 9664032285 in words is "nine billion, six hundred sixty-four million, thirty-two thousand, two hundred eighty-five".