11022451645565 has 4 divisors (see below), whose sum is σ = 13226941974684. Its totient is φ = 8817961316448.

The previous prime is 11022451645561. The next prime is 11022451645589. The reversal of 11022451645565 is 56554615422011.

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 4414780895044 + 6607670750521 = 2101138^2 + 2570539^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022451645565 - 2² = 11022451645561 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022451645561) 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, 1102245164552 + ... + 1102245164561.

It is an arithmetic number, because the mean of its divisors is an integer number (3306735493671).

Almost surely, 2^{11022451645565} is an apocalyptic number.

It is an amenable number.

11022451645565 is a deficient number, since it is larger than the sum of its proper divisors (2204490329119).

11022451645565 is an equidigital number, since it uses as much as digits as its factorization.

11022451645565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204490329118.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 11022451645565 in words is "eleven trillion, twenty-two billion, four hundred fifty-one million, six hundred forty-five thousand, five hundred sixty-five".