209198050118 has 16 divisors (see below), whose sum is σ = 332345798064. Its totient is φ = 98419453440.

The previous prime is 209198050093. The next prime is 209198050133. The reversal of 209198050118 is 811050891902.

209198050118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706448 + ... + 957843.

It is an arithmetic number, because the mean of its divisors is an integer number (20771612379).

Almost surely, 2^209198050118 is an apocalyptic number.

209198050118 is a deficient number, since it is larger than the sum of its proper divisors (123147747946).

209198050118 is a wasteful number, since it uses less digits than its factorization.

209198050118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668007.

The product of its (nonzero) digits is 51840, while the sum is 44.

The spelling of 209198050118 in words is "two hundred nine billion, one hundred ninety-eight million, fifty thousand, one hundred eighteen".