8105115018 has 128 divisors (see below), whose sum is σ = 22122584064. Its totient is φ = 1911340800.

The previous prime is 8105114999. The next prime is 8105115023.

8105115018 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 355305 + ... + 377427.

It is an arithmetic number, because the mean of its divisors is an integer number (172832688).

Almost surely, 2^8105115018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8105115018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11061292032).

8105115018 is an abundant number, since it is smaller than the sum of its proper divisors (14017469046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8105115018 is a wasteful number, since it uses less digits than its factorization.

8105115018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22220.

The product of its (nonzero) digits is 1600, while the sum is 30.

The square root of 8105115018 is about 90028.4122819013. The cubic root of 8105115018 is about 2008.7214972928.

It can be divided in two parts, 81051 and 15018, that added together give a palindrome (96069).

The spelling of 8105115018 in words is "eight billion, one hundred five million, one hundred fifteen thousand, eighteen".