198188339241 has 4 divisors (see below), whose sum is σ = 264251118992. Its totient is φ = 132125559492.

The previous prime is 198188339203. The next prime is 198188339249. The reversal of 198188339241 is 142933881891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 198188339241 - 2⁶ = 198188339177 is a prime.

It is a super-2 number, since 2×198188339241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198188339249) 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, 33031389871 + ... + 33031389876.

It is an arithmetic number, because the mean of its divisors is an integer number (66062779748).

Almost surely, 2^198188339241 is an apocalyptic number.

It is an amenable number.

198188339241 is a deficient number, since it is larger than the sum of its proper divisors (66062779751).

198188339241 is an equidigital number, since it uses as much as digits as its factorization.

198188339241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66062779750.

The product of its digits is 2985984, while the sum is 57.

The spelling of 198188339241 in words is "one hundred ninety-eight billion, one hundred eighty-eight million, three hundred thirty-nine thousand, two hundred forty-one".