198165356 has 6 divisors (see below), whose sum is σ = 346789380. Its totient is φ = 99082676.

The previous prime is 198165343. The next prime is 198165367. The reversal of 198165356 is 653561891.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24770666 + ... + 24770673.

It is an arithmetic number, because the mean of its divisors is an integer number (57798230).

Almost surely, 2^198165356 is an apocalyptic number.

It is an amenable number.

198165356 is a deficient number, since it is larger than the sum of its proper divisors (148624024).

198165356 is a wasteful number, since it uses less digits than its factorization.

198165356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49541343 (or 49541341 counting only the distinct ones).

The product of its digits is 194400, while the sum is 44.

The square root of 198165356 is about 14077.1217228523. The cubic root of 198165356 is about 583.0098746252.

The spelling of 198165356 in words is "one hundred ninety-eight million, one hundred sixty-five thousand, three hundred fifty-six".