180018306236 has 48 divisors (see below), whose sum is σ = 331662002112. Its totient is φ = 85382668800.

The previous prime is 180018306203. The next prime is 180018306271. The reversal of 180018306236 is 632603810081.

It is a self number, because there is not a number n which added to its sum of digits gives 180018306236.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9742046 + ... + 9760506.

It is an arithmetic number, because the mean of its divisors is an integer number (6909625044).

Almost surely, 2^180018306236 is an apocalyptic number.

It is an amenable number.

180018306236 is a deficient number, since it is larger than the sum of its proper divisors (151643695876).

180018306236 is a wasteful number, since it uses less digits than its factorization.

180018306236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20150 (or 20148 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 180018306236 in words is "one hundred eighty billion, eighteen million, three hundred six thousand, two hundred thirty-six".