181842166143300 has 72 divisors (see below), whose sum is σ = 566601539236096. Its totient is φ = 44761148588160.

The previous prime is 181842166143269. The next prime is 181842166143349. The reversal of 181842166143300 is 3341661248181.

It is a super-2 number, since 2×181842166143300² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 181842166143300.

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, 23313094324 + ... + 23313102123.

Almost surely, 2^{181842166143300} is an apocalyptic number.

181842166143300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

181842166143300 is an abundant number, since it is smaller than the sum of its proper divisors (384759373092796).

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

181842166143300 is a wasteful number, since it uses less digits than its factorization.

181842166143300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46626196477 (or 46626196470 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 181842166143300 in words is "one hundred eighty-one trillion, eight hundred forty-two billion, one hundred sixty-six million, one hundred forty-three thousand, three hundred".