118166189856 has 576 divisors, whose sum is σ = 385923968640. Its totient is φ = 31383705600.

The previous prime is 118166189849. The next prime is 118166189879. The reversal of 118166189856 is 658981661811.

It is a self number, because there is not a number n which added to its sum of digits gives 118166189856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2229550726 + ... + 2229550778.

It is an arithmetic number, because the mean of its divisors is an integer number (670006890).

Almost surely, 2^118166189856 is an apocalyptic number.

118166189856 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 118166189856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192961984320).

118166189856 is an abundant number, since it is smaller than the sum of its proper divisors (267757778784).

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

118166189856 is a wasteful number, since it uses less digits than its factorization.

118166189856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 113 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 60.

The spelling of 118166189856 in words is "one hundred eighteen billion, one hundred sixty-six million, one hundred eighty-nine thousand, eight hundred fifty-six".