199880556 has 24 divisors (see below), whose sum is σ = 466636800. Its totient is φ = 66591312.

The previous prime is 199880531. The next prime is 199880563. The reversal of 199880556 is 655088991.

It is a junction number, because it is equal to n+sod(n) for n = 199880499 and 199880508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29145 + ... + 35343.

It is an arithmetic number, because the mean of its divisors is an integer number (19443200).

Almost surely, 2^199880556 is an apocalyptic number.

It is an amenable number.

199880556 is an abundant number, since it is smaller than the sum of its proper divisors (266756244).

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

199880556 is a wasteful number, since it uses less digits than its factorization.

199880556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8893 (or 8891 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 51.

The square root of 199880556 is about 14137.9120099115. The cubic root of 199880556 is about 584.6871056674.

The spelling of 199880556 in words is "one hundred ninety-nine million, eight hundred eighty thousand, five hundred fifty-six".