117800065 has 8 divisors (see below), whose sum is σ = 141419520. Its totient is φ = 94200432.

The previous prime is 117800051. The next prime is 117800069. The reversal of 117800065 is 560008711.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 117800065 - 2¹³ = 117791873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117800069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16866 + ... + 22804.

It is an arithmetic number, because the mean of its divisors is an integer number (17677440).

Almost surely, 2^117800065 is an apocalyptic number.

It is an amenable number.

117800065 is a deficient number, since it is larger than the sum of its proper divisors (23619455).

117800065 is an equidigital number, since it uses as much as digits as its factorization.

117800065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9911.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 117800065 is about 10853.5738353779. The cubic root of 117800065 is about 490.2096354140.

Adding to 117800065 its reverse (560008711), we get a palindrome (677808776).

The spelling of 117800065 in words is "one hundred seventeen million, eight hundred thousand, sixty-five".