11663352171 has 6 divisors (see below), whose sum is σ = 16847064260. Its totient is φ = 7775568108.

The previous prime is 11663352157. The next prime is 11663352203. The reversal of 11663352171 is 17125336611.

11663352171 is a `hidden beast` number, since 1 + 1 + 6 + 63 + 3 + 521 + 71 = 666.

11663352171 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 11663352171 - 2⁵ = 11663352139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11663352671) 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 5 ways as a sum of consecutive naturals, for example, 647964001 + ... + 647964018.

Almost surely, 2^11663352171 is an apocalyptic number.

11663352171 is a deficient number, since it is larger than the sum of its proper divisors (5183712089).

11663352171 is a wasteful number, since it uses less digits than its factorization.

11663352171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295928025 (or 1295928022 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

Adding to 11663352171 its reverse (17125336611), we get a palindrome (28788688782).

The spelling of 11663352171 in words is "eleven billion, six hundred sixty-three million, three hundred fifty-two thousand, one hundred seventy-one".