199559668 has 48 divisors (see below), whose sum is σ = 461026944. Its totient is φ = 73175040.

The previous prime is 199559599. The next prime is 199559677. The reversal of 199559668 is 866955991.

It is a super-2 number, since 2×199559668² = 79648122184540448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13821 + ... + 24292.

It is an arithmetic number, because the mean of its divisors is an integer number (9604728).

Almost surely, 2^199559668 is an apocalyptic number.

It is an amenable number.

199559668 is an abundant number, since it is smaller than the sum of its proper divisors (261467276).

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

199559668 is a wasteful number, since it uses less digits than its factorization.

199559668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38152 (or 38150 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 58.

The square root of 199559668 is about 14126.5589582177. The cubic root of 199559668 is about 584.3740527614.

The spelling of 199559668 in words is "one hundred ninety-nine million, five hundred fifty-nine thousand, six hundred sixty-eight".