117666338 has 8 divisors (see below), whose sum is σ = 179134032. Its totient is φ = 57954996.

The previous prime is 117666337. The next prime is 117666347. The reversal of 117666338 is 833666711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 117666295 and 117666304.

It is not an unprimeable number, because it can be changed into a prime (117666337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438920 + ... + 439187.

It is an arithmetic number, because the mean of its divisors is an integer number (22391754).

Almost surely, 2^117666338 is an apocalyptic number.

117666338 is a deficient number, since it is larger than the sum of its proper divisors (61467694).

117666338 is an equidigital number, since it uses as much as digits as its factorization.

117666338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878176.

The product of its digits is 108864, while the sum is 41.

The square root of 117666338 is about 10847.4115806491. The cubic root of 117666338 is about 490.0240693438.

The spelling of 117666338 in words is "one hundred seventeen million, six hundred sixty-six thousand, three hundred thirty-eight".