198539585662 has 12 divisors (see below), whose sum is σ = 327344193288. Its totient is φ = 90245266100.

The previous prime is 198539585659. The next prime is 198539585749. The reversal of 198539585662 is 266585935891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 410205514 + ... + 410205997.

It is an arithmetic number, because the mean of its divisors is an integer number (27278682774).

Almost surely, 2^198539585662 is an apocalyptic number.

198539585662 is a deficient number, since it is larger than the sum of its proper divisors (128804607626).

198539585662 is a wasteful number, since it uses less digits than its factorization.

198539585662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820411535 (or 820411524 counting only the distinct ones).

The product of its digits is 139968000, while the sum is 67.

The spelling of 198539585662 in words is "one hundred ninety-eight billion, five hundred thirty-nine million, five hundred eighty-five thousand, six hundred sixty-two".