8163563911 has 4 divisors (see below), whose sum is σ = 8165231800. Its totient is φ = 8161896024.

The previous prime is 8163563861. The next prime is 8163563923. The reversal of 8163563911 is 1193653618.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1193653618 = 2 ⋅596826809.

It is a cyclic number.

It is not a de Polignac number, because 8163563911 - 2⁹ = 8163563399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8163563951) 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 3 ways as a sum of consecutive naturals, for example, 826581 + ... + 836398.

It is an arithmetic number, because the mean of its divisors is an integer number (2041307950).

Almost surely, 2^8163563911 is an apocalyptic number.

8163563911 is a deficient number, since it is larger than the sum of its proper divisors (1667889).

8163563911 is a wasteful number, since it uses less digits than its factorization.

8163563911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667888.

The product of its digits is 116640, while the sum is 43.

The square root of 8163563911 is about 90352.4427505975. The cubic root of 8163563911 is about 2013.5384739885.

The spelling of 8163563911 in words is "eight billion, one hundred sixty-three million, five hundred sixty-three thousand, nine hundred eleven".