117812580816 has 80 divisors (see below), whose sum is σ = 354926192000. Its totient is φ = 33660732672.

The previous prime is 117812580811. The next prime is 117812580827. The reversal of 117812580816 is 618085218711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117812580811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3561421 + ... + 3594348.

It is an arithmetic number, because the mean of its divisors is an integer number (4436577400).

Almost surely, 2^117812580816 is an apocalyptic number.

117812580816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

117812580816 is an abundant number, since it is smaller than the sum of its proper divisors (237113611184).

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

117812580816 is an equidigital number, since it uses as much as digits as its factorization.

117812580816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7155801 (or 7155781 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 48.

The spelling of 117812580816 in words is "one hundred seventeen billion, eight hundred twelve million, five hundred eighty thousand, eight hundred sixteen".