11160000018 has 56 divisors (see below), whose sum is σ = 26419558800. Its totient is φ = 3524201784.

The previous prime is 11160000011. The next prime is 11160000073. The reversal of 11160000018 is 81000006111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11160000011) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 173728 + ... + 229131.

Almost surely, 2^11160000018 is an apocalyptic number.

11160000018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11160000018 is an abundant number, since it is smaller than the sum of its proper divisors (15259558782).

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

11160000018 is an equidigital number, since it uses as much as digits as its factorization.

11160000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402898 (or 402883 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11160000018 its reverse (81000006111), we get a palindrome (92160006129).

The spelling of 11160000018 in words is "eleven billion, one hundred sixty million, eighteen", and thus it is an aban number.