205641116103 has 16 divisors (see below), whose sum is σ = 290213705600. Its totient is φ = 129161031840.

The previous prime is 205641116069. The next prime is 205641116117. The reversal of 205641116103 is 301611146502.

It is a happy number.

It is not a de Polignac number, because 205641116103 - 2⁶ = 205641116039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205641116003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9955813 + ... + 9976446.

It is an arithmetic number, because the mean of its divisors is an integer number (18138356600).

Almost surely, 2^205641116103 is an apocalyptic number.

205641116103 is a deficient number, since it is larger than the sum of its proper divisors (84572589497).

205641116103 is a wasteful number, since it uses less digits than its factorization.

205641116103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19932462.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 205641116103 in words is "two hundred five billion, six hundred forty-one million, one hundred sixteen thousand, one hundred three".