11265101665 has 4 divisors (see below), whose sum is σ = 13518122004. Its totient is φ = 9012081328.

The previous prime is 11265101651. The next prime is 11265101669. The reversal of 11265101665 is 56610156211.

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 5408719936 + 5856381729 = 73544^2 + 76527^2 .

It is a cyclic number.

It is not a de Polignac number, because 11265101665 - 2¹³ = 11265093473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11265101665.

It is not an unprimeable number, because it can be changed into a prime (11265101669) 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, 1126510162 + ... + 1126510171.

It is an arithmetic number, because the mean of its divisors is an integer number (3379530501).

Almost surely, 2^11265101665 is an apocalyptic number.

It is an amenable number.

11265101665 is a deficient number, since it is larger than the sum of its proper divisors (2253020339).

11265101665 is an equidigital number, since it uses as much as digits as its factorization.

11265101665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253020338.

The product of its (nonzero) digits is 10800, while the sum is 34.

Adding to 11265101665 its reverse (56610156211), we get a palindrome (67875257876).

The spelling of 11265101665 in words is "eleven billion, two hundred sixty-five million, one hundred one thousand, six hundred sixty-five".