117165457836 has 288 divisors, whose sum is σ = 362550988800. Its totient is φ = 31160142720.

The previous prime is 117165457777. The next prime is 117165457841. The reversal of 117165457836 is 638754561711.

117165457836 is a `hidden beast` number, since 1 + 1 + 7 + 1 + 65 + 4 + 578 + 3 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 177792475 + ... + 177793133.

It is an arithmetic number, because the mean of its divisors is an integer number (1258857600).

Almost surely, 2^117165457836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117165457836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181275494400).

117165457836 is an abundant number, since it is smaller than the sum of its proper divisors (245385530964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117165457836 is a wasteful number, since it uses less digits than its factorization.

117165457836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1284 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The spelling of 117165457836 in words is "one hundred seventeen billion, one hundred sixty-five million, four hundred fifty-seven thousand, eight hundred thirty-six".