18630066064 has 15 divisors (see below), whose sum is σ = 36096810843. Its totient is φ = 9314760048.

The previous prime is 18630066061. The next prime is 18630066073. The reversal of 18630066064 is 46066003681.

The square root of 18630066064 is 136492.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18630066061) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 528907 + ... + 563029.

Almost surely, 2^18630066064 is an apocalyptic number.

18630066064 is the 136492-nd square number.

It is an amenable number.

18630066064 is a deficient number, since it is larger than the sum of its proper divisors (17466744779).

18630066064 is an frugal number, since it uses more digits than its factorization.

18630066064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68254 (or 34125 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 18630066064 in words is "eighteen billion, six hundred thirty million, sixty-six thousand, sixty-four".