199011482171 has 8 divisors (see below), whose sum is σ = 202700329200. Its totient is φ = 195333160960.

The previous prime is 199011482123. The next prime is 199011482179. The reversal of 199011482171 is 171284110991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199011482171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199011482179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2593286 + ... + 2668923.

It is an arithmetic number, because the mean of its divisors is an integer number (25337541150).

Almost surely, 2^199011482171 is an apocalyptic number.

199011482171 is a deficient number, since it is larger than the sum of its proper divisors (3688847029).

199011482171 is an equidigital number, since it uses as much as digits as its factorization.

199011482171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262909.

The product of its (nonzero) digits is 36288, while the sum is 44.

The spelling of 199011482171 in words is "one hundred ninety-nine billion, eleven million, four hundred eighty-two thousand, one hundred seventy-one".