198368836549536 has 96 divisors (see below), whose sum is σ = 523850328207360. Its totient is φ = 65725235699456.

The previous prime is 198368836549517. The next prime is 198368836549549. The reversal of 198368836549536 is 635945638863891.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685495885 + ... + 685785203.

It is an arithmetic number, because the mean of its divisors is an integer number (5456774252160).

Almost surely, 2^{198368836549536} is an apocalyptic number.

198368836549536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

198368836549536 is an abundant number, since it is smaller than the sum of its proper divisors (325481491657824).

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

198368836549536 is a wasteful number, since it uses less digits than its factorization.

198368836549536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332266 (or 332258 counting only the distinct ones).

The product of its digits is 24186470400, while the sum is 84.

The spelling of 198368836549536 in words is "one hundred ninety-eight trillion, three hundred sixty-eight billion, eight hundred thirty-six million, five hundred forty-nine thousand, five hundred thirty-six".