117566677888 has 64 divisors (see below), whose sum is σ = 255640821120. Its totient is φ = 53411438080.

The previous prime is 117566677883. The next prime is 117566677919. The reversal of 117566677888 is 888776665711.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117566677883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2799381 + ... + 2841067.

It is an arithmetic number, because the mean of its divisors is an integer number (3994387830).

Almost surely, 2^117566677888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117566677888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127820410560).

117566677888 is an abundant number, since it is smaller than the sum of its proper divisors (138074143232).

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

117566677888 is a wasteful number, since it uses less digits than its factorization.

117566677888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43715 (or 43703 counting only the distinct ones).

The product of its digits is 189665280, while the sum is 70.

The spelling of 117566677888 in words is "one hundred seventeen billion, five hundred sixty-six million, six hundred seventy-seven thousand, eight hundred eighty-eight".