198384612064 has 48 divisors (see below), whose sum is σ = 408694180608. Its totient is φ = 94690432512.

The previous prime is 198384612061. The next prime is 198384612079. The reversal of 198384612064 is 460216483891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198384612061) 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, 1517952 + ... + 1643455.

It is an arithmetic number, because the mean of its divisors is an integer number (8514462096).

Almost surely, 2^198384612064 is an apocalyptic number.

It is an amenable number.

198384612064 is an abundant number, since it is smaller than the sum of its proper divisors (210309568544).

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

198384612064 is a wasteful number, since it uses less digits than its factorization.

198384612064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161507 (or 3161499 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 198384612064 in words is "one hundred ninety-eight billion, three hundred eighty-four million, six hundred twelve thousand, sixty-four".