11040265657 has 4 divisors (see below), whose sum is σ = 11097469300. Its totient is φ = 10983062016.

The previous prime is 11040265619. The next prime is 11040265703. The reversal of 11040265657 is 75656204011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75656204011 = 2297 ⋅32936963.

It can be written as a sum of positive squares in 2 ways, for example, as 1388382121 + 9651883536 = 37261^2 + 98244^2 .

It is a cyclic number.

It is not a de Polignac number, because 11040265657 - 2¹⁹ = 11039741369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11040215657) 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, 28601532 + ... + 28601917.

It is an arithmetic number, because the mean of its divisors is an integer number (2774367325).

Almost surely, 2^11040265657 is an apocalyptic number.

It is an amenable number.

11040265657 is a deficient number, since it is larger than the sum of its proper divisors (57203643).

11040265657 is an equidigital number, since it uses as much as digits as its factorization.

11040265657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57203642.

The product of its (nonzero) digits is 50400, while the sum is 37.

Adding to 11040265657 its reverse (75656204011), we get a palindrome (86696469668).

The spelling of 11040265657 in words is "eleven billion, forty million, two hundred sixty-five thousand, six hundred fifty-seven".