198495147648 has 128 divisors (see below), whose sum is σ = 611568760320. Its totient is φ = 55866387456.

The previous prime is 198495147647. The next prime is 198495147659. The reversal of 198495147648 is 846741594891.

198495147648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (198495147647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370986 + ... + 731177.

It is an arithmetic number, because the mean of its divisors is an integer number (4777880940).

Almost surely, 2^198495147648 is an apocalyptic number.

It is an amenable number.

198495147648 is an abundant number, since it is smaller than the sum of its proper divisors (413073612672).

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

198495147648 is a wasteful number, since it uses less digits than its factorization.

198495147648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102254 (or 1102242 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 66.

The spelling of 198495147648 in words is "one hundred ninety-eight billion, four hundred ninety-five million, one hundred forty-seven thousand, six hundred forty-eight".