180000806418 has 40 divisors (see below), whose sum is σ = 403377600780. Its totient is φ = 59993952480.

The previous prime is 180000806371. The next prime is 180000806429. The reversal of 180000806418 is 814608000081.

180000806418 is a `hidden beast` number, since 1 + 8 + 0 + 0 + 0 + 0 + 8 + 0 + 641 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 179409003489 + 591802929 = 423567^2 + 24327^2 .

It is a super-2 number, since 2×180000806418² (a number of 23 digits) contains 22 as substring.

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 19 ways as a sum of consecutive naturals, for example, 1636228 + ... + 1742768.

Almost surely, 2^180000806418 is an apocalyptic number.

180000806418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

180000806418 is an abundant number, since it is smaller than the sum of its proper divisors (223376794362).

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

180000806418 is a wasteful number, since it uses less digits than its factorization.

180000806418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116984 (or 116975 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

Adding to 180000806418 its reverse (814608000081), we get a palindrome (994608806499).

The spelling of 180000806418 in words is "one hundred eighty billion, eight hundred six thousand, four hundred eighteen".