9656609140 has 24 divisors (see below), whose sum is σ = 20369825280. Its totient is φ = 3845320608.

The previous prime is 9656609129. The next prime is 9656609189. The reversal of 9656609140 is 419066569.

9656609140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078120 + ... + 1087039.

It is an arithmetic number, because the mean of its divisors is an integer number (848742720).

Almost surely, 2^9656609140 is an apocalyptic number.

It is an amenable number.

9656609140 is an abundant number, since it is smaller than the sum of its proper divisors (10713216140).

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

9656609140 is a wasteful number, since it uses less digits than its factorization.

9656609140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165391 (or 2165389 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 9656609140 is about 98268.0474009736. The cubic root of 9656609140 is about 2129.4864668965.

The spelling of 9656609140 in words is "nine billion, six hundred fifty-six million, six hundred nine thousand, one hundred forty".