9666140172132 has 12 divisors (see below), whose sum is σ = 22554327068336. Its totient is φ = 3222046724040.

The previous prime is 9666140172127. The next prime is 9666140172133. The reversal of 9666140172132 is 2312710416669.

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

It is not an unprimeable number, because it can be changed into a prime (9666140172133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402755840494 + ... + 402755840517.

Almost surely, 2^{9666140172132} is an apocalyptic number.

It is an amenable number.

9666140172132 is an abundant number, since it is smaller than the sum of its proper divisors (12888186896204).

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

9666140172132 is a wasteful number, since it uses less digits than its factorization.

9666140172132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805511681018 (or 805511681016 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 9666140172132 in words is "nine trillion, six hundred sixty-six billion, one hundred forty million, one hundred seventy-two thousand, one hundred thirty-two".