198179190125 has 32 divisors (see below), whose sum is σ = 289233694464. Its totient is φ = 132733944000.

The previous prime is 198179190119. The next prime is 198179190127. The reversal of 198179190125 is 521091971891.

It is not a de Polignac number, because 198179190125 - 2⁴ = 198179190109 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 (198179190127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2595986 + ... + 2671235.

It is an arithmetic number, because the mean of its divisors is an integer number (9038552952).

Almost surely, 2^198179190125 is an apocalyptic number.

It is an amenable number.

198179190125 is a deficient number, since it is larger than the sum of its proper divisors (91054504339).

198179190125 is an equidigital number, since it uses as much as digits as its factorization.

198179190125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5267286 (or 5267276 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 53.

The spelling of 198179190125 in words is "one hundred ninety-eight billion, one hundred seventy-nine million, one hundred ninety thousand, one hundred twenty-five".