9666338882 has 18 divisors (see below), whose sum is σ = 15306988563. Its totient is φ = 4577540724.

The previous prime is 9666338881. The next prime is 9666338887. The reversal of 9666338882 is 2888336669.

It can be written as a sum of positive squares in only one way, i.e., 4833169441 + 4833169441 = 69521^2 + 69521^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=69521.

It is not an unprimeable number, because it can be changed into a prime (9666338881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2639969 + ... + 2643627.

Almost surely, 2^9666338882 is an apocalyptic number.

9666338882 is a deficient number, since it is larger than the sum of its proper divisors (5640649681).

9666338882 is an frugal number, since it uses more digits than its factorization.

9666338882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7358 (or 3680 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 59.

The square root of 9666338882 is about 98317.5410697399. The cubic root of 9666338882 is about 2130.2014314267.

The spelling of 9666338882 in words is "nine billion, six hundred sixty-six million, three hundred thirty-eight thousand, eight hundred eighty-two".