198028025118365 has 32 divisors (see below), whose sum is σ = 258026701637376. Its totient is φ = 145032284067840.

The previous prime is 198028025118331. The next prime is 198028025118373. The reversal of 198028025118365 is 563811520820891.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-198028025118365 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15781556 + ... + 25399085.

It is an arithmetic number, because the mean of its divisors is an integer number (8063334426168).

Almost surely, 2^{198028025118365} is an apocalyptic number.

It is an amenable number.

198028025118365 is a deficient number, since it is larger than the sum of its proper divisors (59998676519011).

198028025118365 is a wasteful number, since it uses less digits than its factorization.

198028025118365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41181269.

The product of its (nonzero) digits is 8294400, while the sum is 59.

The spelling of 198028025118365 in words is "one hundred ninety-eight trillion, twenty-eight billion, twenty-five million, one hundred eighteen thousand, three hundred sixty-five".