198346660126559 has 12 divisors (see below), whose sum is σ = 230868032736600. Its totient is φ = 169909558651728.

The previous prime is 198346660126463. The next prime is 198346660126567. The reversal of 198346660126559 is 955621066643891.

It is a de Polignac number, because none of the positive numbers 2^k-198346660126559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198346660126492 and 198346660126501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198346660126859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1212587789 + ... + 1212751350.

It is an arithmetic number, because the mean of its divisors is an integer number (19239002728050).

Almost surely, 2^{198346660126559} is an apocalyptic number.

198346660126559 is a deficient number, since it is larger than the sum of its proper divisors (32521372610041).

198346660126559 is a wasteful number, since it uses less digits than its factorization.

198346660126559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425340822 (or 2425340815 counting only the distinct ones).

The product of its (nonzero) digits is 503884800, while the sum is 71.

The spelling of 198346660126559 in words is "one hundred ninety-eight trillion, three hundred forty-six billion, six hundred sixty million, one hundred twenty-six thousand, five hundred fifty-nine".