168417224664 has 128 divisors (see below), whose sum is σ = 477501158400. Its totient is φ = 49072158720.

The previous prime is 168417224623. The next prime is 168417224711. The reversal of 168417224664 is 466422714861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18496737 + ... + 18505839.

It is an arithmetic number, because the mean of its divisors is an integer number (3730477800).

Almost surely, 2^168417224664 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 168417224664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238750579200).

168417224664 is an abundant number, since it is smaller than the sum of its proper divisors (309083933736).

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

168417224664 is a wasteful number, since it uses less digits than its factorization.

168417224664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12265 (or 12261 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 51.

The spelling of 168417224664 in words is "one hundred sixty-eight billion, four hundred seventeen million, two hundred twenty-four thousand, six hundred sixty-four".