18036054036018 has 30 divisors (see below), whose sum is σ = 40414242202191. Its totient is φ = 6011999993988.

The previous prime is 18036054035999. The next prime is 18036054036047. The reversal of 18036054036018 is 81063045063081.

18036054036018 is a `hidden beast` number, since 1 + 8 + 0 + 3 + 60 + 540 + 36 + 0 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9018027018009 + 9018027018009 = 3003003^2 + 3003003^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3003003.

It is a super-2 number, since 2×18036054036018² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 53887221 + ... + 54220887.

Almost surely, 2^{18036054036018} is an apocalyptic number.

18036054036018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18036054036018 is an abundant number, since it is smaller than the sum of its proper divisors (22378188166173).

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

18036054036018 is an frugal number, since it uses more digits than its factorization.

18036054036018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667348 (or 333672 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

Adding to 18036054036018 its reverse (81063045063081), we get a palindrome (99099099099099).

The spelling of 18036054036018 in words is "eighteen trillion, thirty-six billion, fifty-four million, thirty-six thousand, eighteen".