199660270 has 8 divisors (see below), whose sum is σ = 359388504. Its totient is φ = 79864104.

The previous prime is 199660267. The next prime is 199660271. The reversal of 199660270 is 72066991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199660271) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 9983004 + ... + 9983023.

It is an arithmetic number, because the mean of its divisors is an integer number (44923563).

Almost surely, 2^199660270 is an apocalyptic number.

199660270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199660270 is a deficient number, since it is larger than the sum of its proper divisors (159728234).

199660270 is a wasteful number, since it uses less digits than its factorization.

199660270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19966034.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 199660270 is about 14130.1192493199. The cubic root of 199660270 is about 584.4722344613.

The spelling of 199660270 in words is "one hundred ninety-nine million, six hundred sixty thousand, two hundred seventy".