199782164 has 24 divisors (see below), whose sum is σ = 371625408. Its totient is φ = 93649280.

The previous prime is 199782151. The next prime is 199782173. The reversal of 199782164 is 461287991.

It is a congruent number.

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, 12299 + ... + 23469.

It is an arithmetic number, because the mean of its divisors is an integer number (15484392).

Almost surely, 2^199782164 is an apocalyptic number.

It is an amenable number.

199782164 is a deficient number, since it is larger than the sum of its proper divisors (171843244).

199782164 is a wasteful number, since it uses less digits than its factorization.

199782164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11455 (or 11453 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 199782164 is about 14134.4318598237. The cubic root of 199782164 is about 584.5911517354.

The spelling of 199782164 in words is "one hundred ninety-nine million, seven hundred eighty-two thousand, one hundred sixty-four".