180057340867221 has 24 divisors (see below), whose sum is σ = 267178555569120. Its totient is φ = 116764889514336.

The previous prime is 180057340867193. The next prime is 180057340867231. The reversal of 180057340867221 is 122768043750081.

180057340867221 is a `hidden beast` number, since 1 + 8 + 0 + 0 + 5 + 7 + 3 + 408 + 6 + 7 + 221 = 666.

It is not a de Polignac number, because 180057340867221 - 2¹⁰ = 180057340866197 is a prime.

It is a super-2 number, since 2×180057340867221² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180057340867231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65931235 + ... + 68607888.

It is an arithmetic number, because the mean of its divisors is an integer number (11132439815380).

Almost surely, 2^{180057340867221} is an apocalyptic number.

It is an amenable number.

180057340867221 is a deficient number, since it is larger than the sum of its proper divisors (87121214701899).

180057340867221 is a wasteful number, since it uses less digits than its factorization.

180057340867221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134543185 (or 134543182 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 180057340867221 in words is "one hundred eighty trillion, fifty-seven billion, three hundred forty million, eight hundred sixty-seven thousand, two hundred twenty-one".