180661026222 has 12 divisors (see below), whose sum is σ = 391432223520. Its totient is φ = 60220342068.

The previous prime is 180661026199. The next prime is 180661026223. The reversal of 180661026222 is 222620166081.

It is a happy number.

180661026222 is a `hidden beast` number, since 18 + 0 + 6 + 6 + 10 + 2 + 622 + 2 = 666.

180661026222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180661026223) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5018361822 + ... + 5018361857.

It is an arithmetic number, because the mean of its divisors is an integer number (32619351960).

Almost surely, 2^180661026222 is an apocalyptic number.

180661026222 is an abundant number, since it is smaller than the sum of its proper divisors (210771197298).

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

180661026222 is a wasteful number, since it uses less digits than its factorization.

180661026222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10036723687 (or 10036723684 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 180661026222 in words is "one hundred eighty billion, six hundred sixty-one million, twenty-six thousand, two hundred twenty-two".