198924570816 has 56 divisors (see below), whose sum is σ = 530979028464. Its totient is φ = 65721384960.

The previous prime is 198924570799. The next prime is 198924570827. The reversal of 198924570816 is 618075429891.

It is a self number, because there is not a number n which added to its sum of digits gives 198924570816.

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 7 ways as a sum of consecutive naturals, for example, 4562665 + ... + 4606056.

Almost surely, 2^198924570816 is an apocalyptic number.

198924570816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

198924570816 is an abundant number, since it is smaller than the sum of its proper divisors (332054457648).

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

198924570816 is a wasteful number, since it uses less digits than its factorization.

198924570816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9168849 (or 9168839 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 60.

The spelling of 198924570816 in words is "one hundred ninety-eight billion, nine hundred twenty-four million, five hundred seventy thousand, eight hundred sixteen".