180618866227332 has 72 divisors (see below), whose sum is σ = 517562833074560. Its totient is φ = 52650033877440.

The previous prime is 180618866227301. The next prime is 180618866227357. The reversal of 180618866227332 is 233722668816081.

180618866227332 is a `hidden beast` number, since 1 + 8 + 0 + 6 + 18 + 8 + 66 + 227 + 332 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 180618866227332.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10156247644 + ... + 10156265427.

Almost surely, 2^{180618866227332} is an apocalyptic number.

180618866227332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

180618866227332 is an abundant number, since it is smaller than the sum of its proper divisors (336943966847228).

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

180618866227332 is a wasteful number, since it uses less digits than its factorization.

180618866227332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20312513113 (or 20312513108 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 180618866227332 in words is "one hundred eighty trillion, six hundred eighteen billion, eight hundred sixty-six million, two hundred twenty-seven thousand, three hundred thirty-two".