180685055812 has 12 divisors (see below), whose sum is σ = 316208042640. Its totient is φ = 90339900776.

The previous prime is 180685055791. The next prime is 180685055879. The reversal of 180685055812 is 218550586081.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497758 + ... + 780469.

It is an arithmetic number, because the mean of its divisors is an integer number (26350670220).

Almost surely, 2^180685055812 is an apocalyptic number.

It is an amenable number.

180685055812 is a deficient number, since it is larger than the sum of its proper divisors (135522986828).

180685055812 is a wasteful number, since it uses less digits than its factorization.

180685055812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313570 (or 1313568 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 49.

The spelling of 180685055812 in words is "one hundred eighty billion, six hundred eighty-five million, fifty-five thousand, eight hundred twelve".