117809169180 has 96 divisors (see below), whose sum is σ = 341186162688. Its totient is φ = 30341683200.

The previous prime is 117809169173. The next prime is 117809169199. The reversal of 117809169180 is 81961908711.

It is a happy number.

It is a congruent 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, 872620 + ... + 998540.

It is an arithmetic number, because the mean of its divisors is an integer number (3554022528).

Almost surely, 2^117809169180 is an apocalyptic number.

117809169180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117809169180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170593081344).

117809169180 is an abundant number, since it is smaller than the sum of its proper divisors (223376993508).

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

117809169180 is a wasteful number, since it uses less digits than its factorization.

117809169180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126467 (or 126465 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 51.

The spelling of 117809169180 in words is "one hundred seventeen billion, eight hundred nine million, one hundred sixty-nine thousand, one hundred eighty".