117720354816 has 117 divisors (see below), whose sum is σ = 340229902831. Its totient is φ = 39218159616.

The previous prime is 117720354781. The next prime is 117720354827. The reversal of 117720354816 is 618453027711.

The square root of 117720354816 is 343104.

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

117720354816 is a `hidden beast` number, since 1 + 1 + 77 + 20 + 3 + 548 + 16 = 666.

117720354816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 65875075 + ... + 65876861.

Almost surely, 2^117720354816 is an apocalyptic number.

117720354816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

117720354816 is the 343104-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117720354816

117720354816 is an abundant number, since it is smaller than the sum of its proper divisors (222509548015).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117720354816 is an frugal number, since it uses more digits than its factorization.

117720354816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 117720354816 in words is "one hundred seventeen billion, seven hundred twenty million, three hundred fifty-four thousand, eight hundred sixteen".