180331642253 has 24 divisors (see below), whose sum is σ = 215955753624. Its totient is φ = 150034550400.

The previous prime is 180331642223. The next prime is 180331642303. The reversal of 180331642253 is 352246133081.

It can be written as a sum of positive squares in 4 ways, for example, as 43007293924 + 137324348329 = 207382^2 + 370573^2 .

It is not a de Polignac number, because 180331642253 - 2⁶ = 180331642189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180331642223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 645143 + ... + 881403.

It is an arithmetic number, because the mean of its divisors is an integer number (8998156401).

Almost surely, 2^180331642253 is an apocalyptic number.

It is an amenable number.

180331642253 is a deficient number, since it is larger than the sum of its proper divisors (35624111371).

180331642253 is a wasteful number, since it uses less digits than its factorization.

180331642253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236733 (or 236726 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 180331642253 in words is "one hundred eighty billion, three hundred thirty-one million, six hundred forty-two thousand, two hundred fifty-three".