117688496161 has 4 divisors (see below), whose sum is σ = 117689483952. Its totient is φ = 117687508372.

The previous prime is 117688496147. The next prime is 117688496249. The reversal of 117688496161 is 161694886711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 117688496161 - 2⁵ = 117688496129 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117688496096 and 117688496105.

It is not an unprimeable number, because it can be changed into a prime (117688496111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 286015 + ... + 563188.

It is an arithmetic number, because the mean of its divisors is an integer number (29422370988).

Almost surely, 2^117688496161 is an apocalyptic number.

It is an amenable number.

117688496161 is a deficient number, since it is larger than the sum of its proper divisors (987791).

117688496161 is an equidigital number, since it uses as much as digits as its factorization.

117688496161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987790.

The product of its digits is 3483648, while the sum is 58.

The spelling of 117688496161 in words is "one hundred seventeen billion, six hundred eighty-eight million, four hundred ninety-six thousand, one hundred sixty-one".