198100372017 has 4 divisors (see below), whose sum is σ = 264133829360. Its totient is φ = 132066914676.

The previous prime is 198100372009. The next prime is 198100372021. The reversal of 198100372017 is 710273001891.

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 198100372017 - 2³ = 198100372009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198100372007) 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, 33016728667 + ... + 33016728672.

It is an arithmetic number, because the mean of its divisors is an integer number (66033457340).

Almost surely, 2^198100372017 is an apocalyptic number.

It is an amenable number.

198100372017 is a deficient number, since it is larger than the sum of its proper divisors (66033457343).

198100372017 is an equidigital number, since it uses as much as digits as its factorization.

198100372017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66033457342.

The product of its (nonzero) digits is 21168, while the sum is 39.

The spelling of 198100372017 in words is "one hundred ninety-eight billion, one hundred million, three hundred seventy-two thousand, seventeen".