199916580 has 24 divisors (see below), whose sum is σ = 559766592. Its totient is φ = 53311072.

The previous prime is 199916579. The next prime is 199916609. The reversal of 199916580 is 85619991.

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, 1665912 + ... + 1666031.

It is an arithmetic number, because the mean of its divisors is an integer number (23323608).

Almost surely, 2^199916580 is an apocalyptic number.

199916580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199916580 is an abundant number, since it is smaller than the sum of its proper divisors (359850012).

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

199916580 is a wasteful number, since it uses less digits than its factorization.

199916580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331955 (or 3331953 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 199916580 is about 14139.1859737398. The cubic root of 199916580 is about 584.7222291490.

The spelling of 199916580 in words is "one hundred ninety-nine million, nine hundred sixteen thousand, five hundred eighty".