9966317916 has 12 divisors (see below), whose sum is σ = 23254741832. Its totient is φ = 3322105968.

The previous prime is 9966317903. The next prime is 9966317947. The reversal of 9966317916 is 6197136699.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415263235 + ... + 415263258.

Almost surely, 2^9966317916 is an apocalyptic number.

It is an amenable number.

9966317916 is an abundant number, since it is smaller than the sum of its proper divisors (13288423916).

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

9966317916 is a wasteful number, since it uses less digits than its factorization.

9966317916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830526500 (or 830526498 counting only the distinct ones).

The product of its digits is 3306744, while the sum is 57.

The square root of 9966317916 is about 99831.4475303248. The cubic root of 9966317916 is about 2152.0131075219.

The spelling of 9966317916 in words is "nine billion, nine hundred sixty-six million, three hundred seventeen thousand, nine hundred sixteen".