199696366 has 8 divisors (see below), whose sum is σ = 299729664. Its totient is φ = 99786480.

The previous prime is 199696361. The next prime is 199696379. The reversal of 199696366 is 663696991.

It is a happy number.

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 (199696361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26695 + ... + 33346.

It is an arithmetic number, because the mean of its divisors is an integer number (37466208).

Almost surely, 2^199696366 is an apocalyptic number.

199696366 is a deficient number, since it is larger than the sum of its proper divisors (100033298).

199696366 is a wasteful number, since it uses less digits than its factorization.

199696366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61706.

The product of its digits is 2834352, while the sum is 55.

The square root of 199696366 is about 14131.3964631950. The cubic root of 199696366 is about 584.5074540179.

It can be divided in two parts, 19969 and 6366, that added together give a triangular number (26335 = T₂₂₉).

The spelling of 199696366 in words is "one hundred ninety-nine million, six hundred ninety-six thousand, three hundred sixty-six".