9566191161 has 12 divisors (see below), whose sum is σ = 13846211392. Its totient is φ = 6364362456.

The previous prime is 9566191153. The next prime is 9566191183. The reversal of 9566191161 is 1611916659.

9566191161 is a `hidden beast` number, since 9 + 566 + 19 + 11 + 61 = 666.

9566191161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9566191161 - 2³ = 9566191153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9566199161) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1086901 + ... + 1095666.

Almost surely, 2^9566191161 is an apocalyptic number.

It is an amenable number.

9566191161 is a deficient number, since it is larger than the sum of its proper divisors (4280020231).

9566191161 is a wasteful number, since it uses less digits than its factorization.

9566191161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183060 (or 2183057 counting only the distinct ones).

The product of its digits is 87480, while the sum is 45.

The square root of 9566191161 is about 97806.9075321370. The cubic root of 9566191161 is about 2122.8192556681.

The spelling of 9566191161 in words is "nine billion, five hundred sixty-six million, one hundred ninety-one thousand, one hundred sixty-one".