198446259312 has 80 divisors (see below), whose sum is σ = 650987738880. Its totient is φ = 56698930368.

The previous prime is 198446259293. The next prime is 198446259329. The reversal of 198446259312 is 213952644891.

It is a happy number.

198446259312 is a `hidden beast` number, since 1 + 9 + 8 + 4 + 4 + 625 + 9 + 3 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32808858 + ... + 32814905.

It is an arithmetic number, because the mean of its divisors is an integer number (8137346736).

Almost surely, 2^198446259312 is an apocalyptic number.

198446259312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198446259312 is an abundant number, since it is smaller than the sum of its proper divisors (452541479568).

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

198446259312 is a wasteful number, since it uses less digits than its factorization.

198446259312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65623787 (or 65623775 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 198446259312 in words is "one hundred ninety-eight billion, four hundred forty-six million, two hundred fifty-nine thousand, three hundred twelve".