8118968663 has 16 divisors (see below), whose sum is σ = 8849000160. Its totient is φ = 7404148224.

The previous prime is 8118968657. The next prime is 8118968713. The reversal of 8118968663 is 3668698118.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8118968663 - 2¹⁶ = 8118903127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8118968599 and 8118968608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8118968623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2026220 + ... + 2030222.

It is an arithmetic number, because the mean of its divisors is an integer number (553062510).

Almost surely, 2^8118968663 is an apocalyptic number.

8118968663 is a deficient number, since it is larger than the sum of its proper divisors (730031497).

8118968663 is a wasteful number, since it uses less digits than its factorization.

8118968663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5858.

The product of its digits is 2985984, while the sum is 56.

The square root of 8118968663 is about 90105.3198373992. The cubic root of 8118968663 is about 2009.8653130380.

The spelling of 8118968663 in words is "eight billion, one hundred eighteen million, nine hundred sixty-eight thousand, six hundred sixty-three".