199632027204 has 81 divisors (see below), whose sum is σ = 509904386173. Its totient is φ = 65855040384.

The previous prime is 199632027173. The next prime is 199632027209. The reversal of 199632027204 is 402720236991.

The square root of 199632027204 is 446802.

It is a perfect power (a square), and thus also a powerful number.

199632027204 is a `hidden beast` number, since 1 + 9 + 9 + 632 + 0 + 2 + 7 + 2 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3517676100 + 196114351104 = 59310^2 + 442848^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199632027204.

It is not an unprimeable number, because it can be changed into a prime (199632027209) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 302931427 + ... + 302932085.

Almost surely, 2^199632027204 is an apocalyptic number.

199632027204 is the 446802-nd square number.

It is an amenable number.

199632027204 is an abundant number, since it is smaller than the sum of its proper divisors (310272358969).

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

199632027204 is an equidigital number, since it uses as much as digits as its factorization.

199632027204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 199632027204 in words is "one hundred ninety-nine billion, six hundred thirty-two million, twenty-seven thousand, two hundred four".