181376163436 has 12 divisors (see below), whose sum is σ = 341824308112. Its totient is φ = 83712075408.

The previous prime is 181376163433. The next prime is 181376163481. The reversal of 181376163436 is 634361673181.

181376163436 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 181376163436.

It is not an unprimeable number, because it can be changed into a prime (181376163433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1744001520 + ... + 1744001623.

Almost surely, 2^181376163436 is an apocalyptic number.

It is an amenable number.

181376163436 is a deficient number, since it is larger than the sum of its proper divisors (160448144676).

181376163436 is a wasteful number, since it uses less digits than its factorization.

181376163436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488003160 (or 3488003158 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The spelling of 181376163436 in words is "one hundred eighty-one billion, three hundred seventy-six million, one hundred sixty-three thousand, four hundred thirty-six".