199011010005 has 24 divisors (see below), whose sum is σ = 345021756768. Its totient is φ = 106117870176.

The previous prime is 199011009997. The next prime is 199011010019. The reversal of 199011010005 is 500010110991.

It is not a de Polignac number, because 199011010005 - 2³ = 199011009997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216847 + ... + 667116.

It is an arithmetic number, because the mean of its divisors is an integer number (14375906532).

Almost surely, 2^199011010005 is an apocalyptic number.

199011010005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199011010005 is a deficient number, since it is larger than the sum of its proper divisors (146010746763).

199011010005 is a wasteful number, since it uses less digits than its factorization.

199011010005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888977 (or 888974 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 27.

Adding to 199011010005 its reverse (500010110991), we get a palindrome (699021120996).

The spelling of 199011010005 in words is "one hundred ninety-nine billion, eleven million, ten thousand, five".