266265106105 has 4 divisors (see below), whose sum is σ = 319518127332. Its totient is φ = 213012084880.

The previous prime is 266265106097. The next prime is 266265106127. The reversal of 266265106105 is 501601562662.

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 36920853904 + 229344252201 = 192148^2 + 478899^2 .

It is not a de Polignac number, because 266265106105 - 2³ = 266265106097 is a prime.

It is a Duffinian 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, 26626510606 + ... + 26626510615.

It is an arithmetic number, because the mean of its divisors is an integer number (79879531833).

Almost surely, 2^266265106105 is an apocalyptic number.

It is an amenable number.

266265106105 is a deficient number, since it is larger than the sum of its proper divisors (53253021227).

266265106105 is an equidigital number, since it uses as much as digits as its factorization.

266265106105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53253021226.

The product of its (nonzero) digits is 129600, while the sum is 40.

Adding to 266265106105 its reverse (501601562662), we get a palindrome (767866668767).

The spelling of 266265106105 in words is "two hundred sixty-six billion, two hundred sixty-five million, one hundred six thousand, one hundred five".