198546864522 has 8 divisors (see below), whose sum is σ = 397093729056. Its totient is φ = 66182288172.

The previous prime is 198546864521. The next prime is 198546864539. The reversal of 198546864522 is 225468645891.

It is a sphenic number, since it is the product of 3 distinct primes.

198546864522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (198546864521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16545572038 + ... + 16545572049.

It is an arithmetic number, because the mean of its divisors is an integer number (49636716132).

Almost surely, 2^198546864522 is an apocalyptic number.

198546864522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

198546864522 is a wasteful number, since it uses less digits than its factorization.

198546864522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33091144092.

The product of its digits is 33177600, while the sum is 60.

The spelling of 198546864522 in words is "one hundred ninety-eight billion, five hundred forty-six million, eight hundred sixty-four thousand, five hundred twenty-two".