2065405871103 has 32 divisors (see below), whose sum is σ = 2888182348800. Its totient is φ = 1311098939136.

The previous prime is 2065405871099. The next prime is 2065405871171. The reversal of 2065405871103 is 3011785045602.

It is a happy number.

It is a Cunningham number, because it is equal to 1437152²-1.

It is not a de Polignac number, because 2065405871103 - 2² = 2065405871099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065405873103) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 104902326 + ... + 104922012.

It is an arithmetic number, because the mean of its divisors is an integer number (90255698400).

Almost surely, 2^{2065405871103} is an apocalyptic number.

2065405871103 is a deficient number, since it is larger than the sum of its proper divisors (822776477697).

2065405871103 is a wasteful number, since it uses less digits than its factorization.

2065405871103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36311.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 2065405871103 in words is "two trillion, sixty-five billion, four hundred five million, eight hundred seventy-one thousand, one hundred three".