180117036 has 144 divisors (see below), whose sum is σ = 537788160. Its totient is φ = 50232960.

The previous prime is 180117031. The next prime is 180117083. The reversal of 180117036 is 630711081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180117031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278065 + ... + 278711.

It is an arithmetic number, because the mean of its divisors is an integer number (3734640).

Almost surely, 2^180117036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180117036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268894080).

180117036 is an abundant number, since it is smaller than the sum of its proper divisors (357671124).

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

180117036 is a wasteful number, since it uses less digits than its factorization.

180117036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 180117036 is about 13420.7688304359. The cubic root of 180117036 is about 564.7439631412.

The spelling of 180117036 in words is "one hundred eighty million, one hundred seventeen thousand, thirty-six".