198541445495 has 16 divisors (see below), whose sum is σ = 242183017152. Its totient is φ = 156211560960.

The previous prime is 198541445491. The next prime is 198541445507. The reversal of 198541445495 is 594544145891.

It is a happy number.

It is not a de Polignac number, because 198541445495 - 2² = 198541445491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198541445491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3076934 + ... + 3140796.

It is an arithmetic number, because the mean of its divisors is an integer number (15136438572).

Almost surely, 2^198541445495 is an apocalyptic number.

198541445495 is a deficient number, since it is larger than the sum of its proper divisors (43641571657).

198541445495 is a wasteful number, since it uses less digits than its factorization.

198541445495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74122.

The product of its digits is 20736000, while the sum is 59.

The spelling of 198541445495 in words is "one hundred ninety-eight billion, five hundred forty-one million, four hundred forty-five thousand, four hundred ninety-five".