199441121163 has 4 divisors (see below), whose sum is σ = 265921494888. Its totient is φ = 132960747440.

The previous prime is 199441121137. The next prime is 199441121167. The reversal of 199441121163 is 361121144991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 199441121163 - 2⁹ = 199441120651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199441121167) 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, 33240186858 + ... + 33240186863.

It is an arithmetic number, because the mean of its divisors is an integer number (66480373722).

Almost surely, 2^199441121163 is an apocalyptic number.

199441121163 is a deficient number, since it is larger than the sum of its proper divisors (66480373725).

199441121163 is an equidigital number, since it uses as much as digits as its factorization.

199441121163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66480373724.

The product of its digits is 46656, while the sum is 42.

The spelling of 199441121163 in words is "one hundred ninety-nine billion, four hundred forty-one million, one hundred twenty-one thousand, one hundred sixty-three".