2136442050205 has 4 divisors (see below), whose sum is σ = 2563730460252. Its totient is φ = 1709153640160.

The previous prime is 2136442050161. The next prime is 2136442050229. The reversal of 2136442050205 is 5020502446312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 393667150041 + 1742774900164 = 627429^2 + 1320142^2 .

It is not a de Polignac number, because 2136442050205 - 2¹¹ = 2136442048157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213644205016 + ... + 213644205025.

It is an arithmetic number, because the mean of its divisors is an integer number (640932615063).

Almost surely, 2^{2136442050205} is an apocalyptic number.

It is an amenable number.

2136442050205 is a deficient number, since it is larger than the sum of its proper divisors (427288410047).

2136442050205 is an equidigital number, since it uses as much as digits as its factorization.

2136442050205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427288410046.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 2136442050205 its reverse (5020502446312), we get a palindrome (7156944496517).

The spelling of 2136442050205 in words is "two trillion, one hundred thirty-six billion, four hundred forty-two million, fifty thousand, two hundred five".