8116568463 has 32 divisors (see below), whose sum is σ = 11509516800. Its totient is φ = 5076765056.

The previous prime is 8116568461. The next prime is 8116568477. The reversal of 8116568463 is 3648656118.

It is a Cunningham number, because it is equal to 90092²-1.

It is a cyclic number.

It is not a de Polignac number, because 8116568463 - 2¹ = 8116568461 is a prime.

It is a super-2 number, since 2×8116568463² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8116568461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2070181 + ... + 2074097.

It is an arithmetic number, because the mean of its divisors is an integer number (359672400).

Almost surely, 2^8116568463 is an apocalyptic number.

8116568463 is a deficient number, since it is larger than the sum of its proper divisors (3392948337).

8116568463 is a wasteful number, since it uses less digits than its factorization.

8116568463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511.

The product of its digits is 829440, while the sum is 48.

The square root of 8116568463 is about 90091.9999944501. Note that the first 5 decimals coincide. The cubic root of 8116568463 is about 2009.6672355735.

The spelling of 8116568463 in words is "eight billion, one hundred sixteen million, five hundred sixty-eight thousand, four hundred sixty-three".