8101111018 has 64 divisors (see below), whose sum is σ = 16384757760. Its totient is φ = 2901124800.

The previous prime is 8101111013. The next prime is 8101111063.

8101111018 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

8101111018 is a strobogrammatic number because it is the same when read upside-down.

It is a self number, because there is not a number n which added to its sum of digits gives 8101111018.

It is not an unprimeable number, because it can be changed into a prime (8101111013) 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, 470013 + ... + 486943.

It is an arithmetic number, because the mean of its divisors is an integer number (256011840).

Almost surely, 2^8101111018 is an apocalyptic number.

8101111018 is an abundant number, since it is smaller than the sum of its proper divisors (8283646742).

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

8101111018 is a wasteful number, since it uses less digits than its factorization.

8101111018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17203.

The product of its (nonzero) digits is 64, while the sum is 22.

The square root of 8101111018 is about 90006.1721105836. The cubic root of 8101111018 is about 2008.3906672903.

It can be divided in two parts, 81011 and 11018, that added together give a palindrome (92029).

The spelling of 8101111018 in words is "eight billion, one hundred one million, one hundred eleven thousand, eighteen".