117321730666 has 64 divisors (see below), whose sum is σ = 212405356800. Its totient is φ = 48547537920.

The previous prime is 117321730657. The next prime is 117321730717. The reversal of 117321730666 is 666037123711.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2706721 + ... + 2749723.

It is an arithmetic number, because the mean of its divisors is an integer number (3318833700).

Almost surely, 2^117321730666 is an apocalyptic number.

117321730666 is a deficient number, since it is larger than the sum of its proper divisors (95083626134).

117321730666 is an equidigital number, since it uses as much as digits as its factorization.

117321730666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43164 (or 43150 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 117321730666 in words is "one hundred seventeen billion, three hundred twenty-one million, seven hundred thirty thousand, six hundred sixty-six".