194219466168 has 256 divisors, whose sum is σ = 625599313920. Its totient is φ = 48837076992.

The previous prime is 194219466151. The next prime is 194219466197. The reversal of 194219466168 is 861664912491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15917446 + ... + 15929642.

It is an arithmetic number, because the mean of its divisors is an integer number (2443747320).

Almost surely, 2^194219466168 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 194219466168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312799656960).

194219466168 is an abundant number, since it is smaller than the sum of its proper divisors (431379847752).

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

194219466168 is a wasteful number, since it uses less digits than its factorization.

194219466168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12566 (or 12562 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 57.

The spelling of 194219466168 in words is "one hundred ninety-four billion, two hundred nineteen million, four hundred sixty-six thousand, one hundred sixty-eight".