9664540716 has 24 divisors (see below), whose sum is σ = 22598896320. Its totient is φ = 3214613392.

The previous prime is 9664540679. The next prime is 9664540727. The reversal of 9664540716 is 6170454669.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856686 + ... + 867893.

It is an arithmetic number, because the mean of its divisors is an integer number (941620680).

Almost surely, 2^9664540716 is an apocalyptic number.

It is an amenable number.

9664540716 is an abundant number, since it is smaller than the sum of its proper divisors (12934355604).

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

9664540716 is a wasteful number, since it uses less digits than its factorization.

9664540716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725053 (or 1725051 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 9664540716 is about 98308.3959588396. The cubic root of 9664540716 is about 2130.0693340740.

The spelling of 9664540716 in words is "nine billion, six hundred sixty-four million, five hundred forty thousand, seven hundred sixteen".