199960200001 has 4 divisors (see below), whose sum is σ = 200157595092. Its totient is φ = 199762804912.

The previous prime is 199960199983. The next prime is 199960200031. The reversal of 199960200001 is 100002069991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100002069991 = 112097 ⋅892103.

It can be written as a sum of positive squares in 2 ways, for example, as 23035650625 + 176924549376 = 151775^2 + 420624^2 .

It is a cyclic number.

It is not a de Polignac number, because 199960200001 - 2²⁹ = 199423329089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199960200031) 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, 98696026 + ... + 98698051.

It is an arithmetic number, because the mean of its divisors is an integer number (50039398773).

Almost surely, 2^199960200001 is an apocalyptic number.

It is an amenable number.

199960200001 is a deficient number, since it is larger than the sum of its proper divisors (197395091).

199960200001 is a wasteful number, since it uses less digits than its factorization.

199960200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197395090.

The product of its (nonzero) digits is 8748, while the sum is 37.

Adding to 199960200001 its reverse (100002069991), we get a palindrome (299962269992).

The spelling of 199960200001 in words is "one hundred ninety-nine billion, nine hundred sixty million, two hundred thousand, one".