117775616 has 108 divisors (see below), whose sum is σ = 281366820. Its totient is φ = 49029120.

The previous prime is 117775613. The next prime is 117775631. The reversal of 117775616 is 616577711.

It can be written as a sum of positive squares in 2 ways, for example, as 56310016 + 61465600 = 7504^2 + 7840^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117775613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 514190 + ... + 514418.

Almost surely, 2^117775616 is an apocalyptic number.

117775616 is a gapful number since it is divisible by the number (16) 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 117775616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140683410).

117775616 is an abundant number, since it is smaller than the sum of its proper divisors (163591204).

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

117775616 is an equidigital number, since it uses as much as digits as its factorization.

117775616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 279 counting only the distinct ones).

The product of its digits is 61740, while the sum is 41.

The square root of 117775616 is about 10852.4474658945. The cubic root of 117775616 is about 490.1757192906.

The spelling of 117775616 in words is "one hundred seventeen million, seven hundred seventy-five thousand, six hundred sixteen".