180395216631798 has 128 divisors (see below), whose sum is σ = 432139965619200. Its totient is φ = 50145974242560.

The previous prime is 180395216631767. The next prime is 180395216631857. The reversal of 180395216631798 is 897136612593081.

180395216631798 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (69) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1946321565 + ... + 1946414247.

It is an arithmetic number, because the mean of its divisors is an integer number (3376093481400).

Almost surely, 2^{180395216631798} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180395216631798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216069982809600).

180395216631798 is an abundant number, since it is smaller than the sum of its proper divisors (251744748987402).

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

180395216631798 is a wasteful number, since it uses less digits than its factorization.

180395216631798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118307 (or 118293 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 69.

The spelling of 180395216631798 in words is "one hundred eighty trillion, three hundred ninety-five billion, two hundred sixteen million, six hundred thirty-one thousand, seven hundred ninety-eight".