117530542065 has 32 divisors (see below), whose sum is σ = 191164907520. Its totient is φ = 61647309504.

The previous prime is 117530542007. The next prime is 117530542093. The reversal of 117530542065 is 560245035711.

It is not a de Polignac number, because 117530542065 - 2⁷ = 117530541937 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 527632 + ... + 716558.

It is an arithmetic number, because the mean of its divisors is an integer number (5973903360).

Almost surely, 2^117530542065 is an apocalyptic number.

117530542065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117530542065 is a deficient number, since it is larger than the sum of its proper divisors (73634365455).

117530542065 is a wasteful number, since it uses less digits than its factorization.

117530542065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189621.

The product of its (nonzero) digits is 126000, while the sum is 39.

Adding to 117530542065 its reverse (560245035711), we get a palindrome (677775577776).

The spelling of 117530542065 in words is "one hundred seventeen billion, five hundred thirty million, five hundred forty-two thousand, sixty-five".