180899673664 has 112 divisors (see below), whose sum is σ = 390778309120. Its totient is φ = 82771476480.

The previous prime is 180899673659. The next prime is 180899673671. The reversal of 180899673664 is 466376998081.

180899673664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 180899673664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21746434 + ... + 21754750.

Almost surely, 2^180899673664 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 180899673664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195389154560).

180899673664 is an abundant number, since it is smaller than the sum of its proper divisors (209878635456).

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

180899673664 is a wasteful number, since it uses less digits than its factorization.

180899673664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8956 (or 8946 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 67.

The spelling of 180899673664 in words is "one hundred eighty billion, eight hundred ninety-nine million, six hundred seventy-three thousand, six hundred sixty-four".