18045385056196 has 27 divisors (see below), whose sum is σ = 31715676952239. Its totient is φ = 8983929655848.

The previous prime is 18045385056173. The next prime is 18045385056211. The reversal of 18045385056196 is 69165058354081.

It is a happy number.

The square root of 18045385056196 is 4247986.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2030532865 + ... + 2030541751.

Almost surely, 2^{18045385056196} is an apocalyptic number.

18045385056196 is the 4247986-th square number.

It is an amenable number.

18045385056196 is a deficient number, since it is larger than the sum of its proper divisors (13670291896043).

18045385056196 is an frugal number, since it uses more digits than its factorization.

18045385056196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18256 (or 9128 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 61.

The spelling of 18045385056196 in words is "eighteen trillion, forty-five billion, three hundred eighty-five million, fifty-six thousand, one hundred ninety-six".