180450023168 has 72 divisors (see below), whose sum is σ = 372778628880. Its totient is φ = 87075717120.

The previous prime is 180450023137. The next prime is 180450023251. The reversal of 180450023168 is 861320054081.

It is a super-2 number, since 2×180450023168² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24725696 + ... + 24732992.

Almost surely, 2^180450023168 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 180450023168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186389314440).

180450023168 is an abundant number, since it is smaller than the sum of its proper divisors (192328605712).

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

180450023168 is an equidigital number, since it uses as much as digits as its factorization.

180450023168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10673 (or 10659 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 180450023168 in words is "one hundred eighty billion, four hundred fifty million, twenty-three thousand, one hundred sixty-eight".