266105220143113 has 4 divisors (see below), whose sum is σ = 286574852461828. Its totient is φ = 245635587824400.

The previous prime is 266105220143047. The next prime is 266105220143131. The reversal of 266105220143113 is 311341022501662.

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 29391979144969 + 236713240998144 = 5421437^2 + 15385488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266105220143113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266105220143173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10234816159338 + ... + 10234816159363.

It is an arithmetic number, because the mean of its divisors is an integer number (71643713115457).

Almost surely, 2^{266105220143113} is an apocalyptic number.

It is an amenable number.

266105220143113 is a deficient number, since it is larger than the sum of its proper divisors (20469632318715).

266105220143113 is a wasteful number, since it uses less digits than its factorization.

266105220143113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20469632318714.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 266105220143113 its reverse (311341022501662), we get a palindrome (577446242644775).

The spelling of 266105220143113 in words is "two hundred sixty-six trillion, one hundred five billion, two hundred twenty million, one hundred forty-three thousand, one hundred thirteen".