9522640161 has 12 divisors (see below), whose sum is σ = 14126679892. Its totient is φ = 6176847456.

The previous prime is 9522640157. The next prime is 9522640177. The reversal of 9522640161 is 1610462259.

9522640161 is a `hidden beast` number, since 9 + 5 + 2 + 2 + 640 + 1 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6806250000 + 2716390161 = 82500^2 + 52119^2 .

It is not a de Polignac number, because 9522640161 - 2² = 9522640157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9522640181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14297926 + ... + 14298591.

Almost surely, 2^9522640161 is an apocalyptic number.

It is an amenable number.

9522640161 is a deficient number, since it is larger than the sum of its proper divisors (4604039731).

9522640161 is a wasteful number, since it uses less digits than its factorization.

9522640161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28596560 (or 28596557 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 9522640161 is about 97584.0159093691. The cubic root of 9522640161 is about 2119.5929087359.

The spelling of 9522640161 in words is "nine billion, five hundred twenty-two million, six hundred forty thousand, one hundred sixty-one".