117986066165 has 8 divisors (see below), whose sum is σ = 154454486688. Its totient is φ = 85808048080.

The previous prime is 117986066137. The next prime is 117986066167. The reversal of 117986066165 is 561660689711.

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

It is not a de Polignac number, because 117986066165 - 2¹² = 117986062069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117986066165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117986066167) 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, 1072600547 + ... + 1072600656.

It is an arithmetic number, because the mean of its divisors is an integer number (19306810836).

Almost surely, 2^117986066165 is an apocalyptic number.

It is an amenable number.

117986066165 is a deficient number, since it is larger than the sum of its proper divisors (36468420523).

117986066165 is a wasteful number, since it uses less digits than its factorization.

117986066165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145201219.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 117986066165 in words is "one hundred seventeen billion, nine hundred eighty-six million, sixty-six thousand, one hundred sixty-five".