197911168 has 96 divisors (see below), whose sum is σ = 488302560. Its totient is φ = 78234624.

The previous prime is 197911121. The next prime is 197911213. The reversal of 197911168 is 861119791.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150771 + ... + 152077.

It is an arithmetic number, because the mean of its divisors is an integer number (5086485).

Almost surely, 2^197911168 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 197911168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244151280).

197911168 is an abundant number, since it is smaller than the sum of its proper divisors (290391392).

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

197911168 is a wasteful number, since it uses less digits than its factorization.

197911168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354 (or 1329 counting only the distinct ones).

The product of its digits is 27216, while the sum is 43.

The square root of 197911168 is about 14068.0904176793. The cubic root of 197911168 is about 582.7604911047.

The spelling of 197911168 in words is "one hundred ninety-seven million, nine hundred eleven thousand, one hundred sixty-eight".