180022193988 has 192 divisors, whose sum is σ = 542418616320. Its totient is φ = 45193075200.

The previous prime is 180022193959. The next prime is 180022194013. The reversal of 180022193988 is 889391220081.

It is a self number, because there is not a number n which added to its sum of digits gives 180022193988.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2021383 + ... + 2108561.

It is an arithmetic number, because the mean of its divisors is an integer number (2825096960).

Almost surely, 2^180022193988 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 180022193988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271209308160).

180022193988 is an abundant number, since it is smaller than the sum of its proper divisors (362396422332).

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

180022193988 is a wasteful number, since it uses less digits than its factorization.

180022193988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87298 (or 87296 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 180022193988 in words is "one hundred eighty billion, twenty-two million, one hundred ninety-three thousand, nine hundred eighty-eight".