198116586 has 24 divisors (see below), whose sum is σ = 433424160. Its totient is φ = 65397096.

The previous prime is 198116563. The next prime is 198116669. The reversal of 198116586 is 685611891.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51576 + ... + 55283.

It is an arithmetic number, because the mean of its divisors is an integer number (18059340).

Almost surely, 2^198116586 is an apocalyptic number.

198116586 is an abundant number, since it is smaller than the sum of its proper divisors (235307574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198116586 is a wasteful number, since it uses less digits than its factorization.

198116586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106970 (or 106967 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 198116586 is about 14075.3893729445. The cubic root of 198116586 is about 582.9620429809.

The spelling of 198116586 in words is "one hundred ninety-eight million, one hundred sixteen thousand, five hundred eighty-six".