117155215152 has 120 divisors (see below), whose sum is σ = 338095631328. Its totient is φ = 37846656000.

The previous prime is 117155215127. The next prime is 117155215181. The reversal of 117155215152 is 251512551711.

117155215152 is a `hidden beast` number, since 1 + 1 + 7 + 1 + 552 + 1 + 51 + 52 = 666.

It is a super-2 number, since 2×117155215152² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 825798 + ... + 957210.

Almost surely, 2^117155215152 is an apocalyptic number.

117155215152 is a gapful number since it is divisible by the number (12) 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 117155215152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169047815664).

117155215152 is an abundant number, since it is smaller than the sum of its proper divisors (220940416176).

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

117155215152 is a wasteful number, since it uses less digits than its factorization.

117155215152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131619 (or 131610 counting only the distinct ones).

The product of its digits is 17500, while the sum is 36.

Adding to 117155215152 its reverse (251512551711), we get a palindrome (368667766863).

The spelling of 117155215152 in words is "one hundred seventeen billion, one hundred fifty-five million, two hundred fifteen thousand, one hundred fifty-two".