166718368 has 48 divisors (see below), whose sum is σ = 335978496. Its totient is φ = 81411840.

The previous prime is 166718351. The next prime is 166718389. The reversal of 166718368 is 863817661.

It is an unprimeable number.

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, 435105 + ... + 435487.

It is an arithmetic number, because the mean of its divisors is an integer number (6999552).

Almost surely, 2^166718368 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 166718368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167989248).

166718368 is an abundant number, since it is smaller than the sum of its proper divisors (169260128).

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

166718368 is a wasteful number, since it uses less digits than its factorization.

166718368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 669 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 166718368 is about 12911.9467161230. The cubic root of 166718368 is about 550.3781069465.

The spelling of 166718368 in words is "one hundred sixty-six million, seven hundred eighteen thousand, three hundred sixty-eight".