1005500111018 has 16 divisors (see below), whose sum is σ = 1719814670280. Its totient is φ = 436778328576.

The previous prime is 1005500111003. The next prime is 1005500111081. The reversal of 1005500111018 is 8101110055001.

It can be written as a sum of positive squares in 4 ways, for example, as 979995062809 + 25505048209 = 989947^2 + 159703^2 .

It is a super-2 number, since 2×1005500111018² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1005500110984 and 1005500111002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137443123 + ... + 1137444006.

Almost surely, 2^{1005500111018} is an apocalyptic number.

1005500111018 is a deficient number, since it is larger than the sum of its proper divisors (714314559262).

1005500111018 is a wasteful number, since it uses less digits than its factorization.

1005500111018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274887161.

The product of its (nonzero) digits is 200, while the sum is 23.

Adding to 1005500111018 its reverse (8101110055001), we get a palindrome (9106610166019).

The spelling of 1005500111018 in words is "one trillion, five billion, five hundred million, one hundred eleven thousand, eighteen".