163198866 has 16 divisors (see below), whose sum is σ = 343576800. Its totient is φ = 51536448.

The previous prime is 163198859. The next prime is 163198877. The reversal of 163198866 is 668891361.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715671 + ... + 715898.

It is an arithmetic number, because the mean of its divisors is an integer number (21473550).

Almost surely, 2^163198866 is an apocalyptic number.

163198866 is an abundant number, since it is smaller than the sum of its proper divisors (180377934).

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

163198866 is a wasteful number, since it uses less digits than its factorization.

163198866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431593.

The product of its digits is 373248, while the sum is 48.

The square root of 163198866 is about 12774.9311544133. The cubic root of 163198866 is about 546.4776174744.

The spelling of 163198866 in words is "one hundred sixty-three million, one hundred ninety-eight thousand, eight hundred sixty-six".