117816895056 has 160 divisors (see below), whose sum is σ = 363504734208. Its totient is φ = 32179392000.

The previous prime is 117816895019. The next prime is 117816895057. The reversal of 117816895056 is 650598618711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 117816894987 and 117816895005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117816895057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 592306 + ... + 765806.

Almost surely, 2^117816895056 is an apocalyptic number.

117816895056 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 117816895056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181752367104).

117816895056 is an abundant number, since it is smaller than the sum of its proper divisors (245687839152).

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

117816895056 is a wasteful number, since it uses less digits than its factorization.

117816895056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173609 (or 173603 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 57.

The spelling of 117816895056 in words is "one hundred seventeen billion, eight hundred sixteen million, eight hundred ninety-five thousand, fifty-six".