9664782706320 has 160 divisors (see below), whose sum is σ = 34241956588800. Its totient is φ = 2209027891200.

The previous prime is 9664782706303. The next prime is 9664782706363. The reversal of 9664782706320 is 236072874669.

It is a Harshad number since it is a multiple of its sum of digits (60).

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 31 ways as a sum of consecutive naturals, for example, 78227956 + ... + 78351404.

It is an arithmetic number, because the mean of its divisors is an integer number (214012228680).

Almost surely, 2^{9664782706320} is an apocalyptic number.

It is an amenable number.

9664782706320 is an abundant number, since it is smaller than the sum of its proper divisors (24577173882480).

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

9664782706320 is a wasteful number, since it uses less digits than its factorization.

9664782706320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170073 (or 170067 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 60.

The spelling of 9664782706320 in words is "nine trillion, six hundred sixty-four billion, seven hundred eighty-two million, seven hundred six thousand, three hundred twenty".