199554168 has 64 divisors (see below), whose sum is σ = 548824320. Its totient is φ = 60461280.

The previous prime is 199554163. The next prime is 199554193. The reversal of 199554168 is 861455991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199554163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28821 + ... + 35067.

It is an arithmetic number, because the mean of its divisors is an integer number (8575380).

Almost surely, 2^199554168 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 199554168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274412160).

199554168 is an abundant number, since it is smaller than the sum of its proper divisors (349270152).

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

199554168 is a wasteful number, since it uses less digits than its factorization.

199554168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6289 (or 6263 counting only the distinct ones).

The product of its digits is 388800, while the sum is 48.

The square root of 199554168 is about 14126.3642880962. The cubic root of 199554168 is about 584.3686841301.

The spelling of 199554168 in words is "one hundred ninety-nine million, five hundred fifty-four thousand, one hundred sixty-eight".