198241667904 has 56 divisors (see below), whose sum is σ = 599445047488. Its totient is φ = 56640476160.

The previous prime is 198241667887. The next prime is 198241667909. The reversal of 198241667904 is 409766142891.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198241667909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73749277 + ... + 73751964.

It is an arithmetic number, because the mean of its divisors is an integer number (10704375848).

Almost surely, 2^198241667904 is an apocalyptic number.

198241667904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

198241667904 is an abundant number, since it is smaller than the sum of its proper divisors (401203379584).

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

198241667904 is a wasteful number, since it uses less digits than its factorization.

198241667904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147501263 (or 147501253 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 198241667904 in words is "one hundred ninety-eight billion, two hundred forty-one million, six hundred sixty-seven thousand, nine hundred four".