166968208 has 40 divisors (see below), whose sum is σ = 355334400. Its totient is φ = 75373440.

The previous prime is 166968199. The next prime is 166968209. The reversal of 166968208 is 802869661.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (166968209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23041 + ... + 29407.

It is an arithmetic number, because the mean of its divisors is an integer number (8883360).

Almost surely, 2^166968208 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 166968208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177667200).

166968208 is an abundant number, since it is smaller than the sum of its proper divisors (188366192).

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

166968208 is a wasteful number, since it uses less digits than its factorization.

166968208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6535 (or 6529 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 166968208 is about 12921.6178553616. The cubic root of 166968208 is about 550.6528973752.

The spelling of 166968208 in words is "one hundred sixty-six million, nine hundred sixty-eight thousand, two hundred eight".