117165908577 has 4 divisors (see below), whose sum is σ = 156221211440. Its totient is φ = 78110605716.

The previous prime is 117165908569. The next prime is 117165908603. The reversal of 117165908577 is 775809561711.

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.

It is not a de Polignac number, because 117165908577 - 2³ = 117165908569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117165948577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19527651427 + ... + 19527651432.

It is an arithmetic number, because the mean of its divisors is an integer number (39055302860).

Almost surely, 2^117165908577 is an apocalyptic number.

It is an amenable number.

117165908577 is a deficient number, since it is larger than the sum of its proper divisors (39055302863).

117165908577 is an equidigital number, since it uses as much as digits as its factorization.

117165908577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39055302862.

The product of its (nonzero) digits is 3704400, while the sum is 57.

The spelling of 117165908577 in words is "one hundred seventeen billion, one hundred sixty-five million, nine hundred eight thousand, five hundred seventy-seven".