199165106555 has 16 divisors (see below), whose sum is σ = 247254590880. Its totient is φ = 153828450048.

The previous prime is 199165106549. The next prime is 199165106579. The reversal of 199165106555 is 555601561991.

It is not a de Polignac number, because 199165106555 - 2¹⁴ = 199165090171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 199165106497 and 199165106506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3181184 + ... + 3243186.

It is an arithmetic number, because the mean of its divisors is an integer number (15453411930).

Almost surely, 2^199165106555 is an apocalyptic number.

199165106555 is a deficient number, since it is larger than the sum of its proper divisors (48089484325).

199165106555 is a wasteful number, since it uses less digits than its factorization.

199165106555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84190.

The product of its (nonzero) digits is 1822500, while the sum is 53.

The spelling of 199165106555 in words is "one hundred ninety-nine billion, one hundred sixty-five million, one hundred six thousand, five hundred fifty-five".