117081538560 has 1024 divisors, whose sum is σ = 503308800000. Its totient is φ = 25225592832.

The previous prime is 117081538529. The next prime is 117081538657. The reversal of 117081538560 is 65835180711.

117081538560 is a `hidden beast` number, since 1 + 1 + 7 + 0 + 81 + 5 + 3 + 8 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (1024).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 588349341 + ... + 588349539.

It is an arithmetic number, because the mean of its divisors is an integer number (491512500).

Almost surely, 2^117081538560 is an apocalyptic number.

117081538560 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 117081538560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251654400000).

117081538560 is an abundant number, since it is smaller than the sum of its proper divisors (386227261440).

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

117081538560 is an equidigital number, since it uses as much as digits as its factorization.

117081538560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The spelling of 117081538560 in words is "one hundred seventeen billion, eighty-one million, five hundred thirty-eight thousand, five hundred sixty".