168666112 has 44 divisors (see below), whose sum is σ = 357037740. Its totient is φ = 79364096.

The previous prime is 168666101. The next prime is 168666143. The reversal of 168666112 is 211666861.

It can be written as a sum of positive squares in 2 ways, for example, as 113550336 + 55115776 = 10656^2 + 7424^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12564 + ... + 22252.

Almost surely, 2^168666112 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 168666112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178518870).

168666112 is an abundant number, since it is smaller than the sum of its proper divisors (188371628).

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

168666112 is an equidigital number, since it uses as much as digits as its factorization.

168666112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726 (or 9708 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 168666112 is about 12987.1518047646. The cubic root of 168666112 is about 552.5131404231.

The spelling of 168666112 in words is "one hundred sixty-eight million, six hundred sixty-six thousand, one hundred twelve".