11245619065 has 4 divisors (see below), whose sum is σ = 13494742884. Its totient is φ = 8996495248.

The previous prime is 11245619059. The next prime is 11245619069. The reversal of 11245619065 is 56091654211.

It is a happy number.

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 8895696489 + 2349922576 = 94317^2 + 48476^2 .

It is a cyclic number.

It is not a de Polignac number, because 11245619065 - 2²³ = 11237230457 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11245619069) 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, 1124561902 + ... + 1124561911.

It is an arithmetic number, because the mean of its divisors is an integer number (3373685721).

Almost surely, 2^11245619065 is an apocalyptic number.

It is an amenable number.

11245619065 is a deficient number, since it is larger than the sum of its proper divisors (2249123819).

11245619065 is an equidigital number, since it uses as much as digits as its factorization.

11245619065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249123818.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 11245619065 in words is "eleven billion, two hundred forty-five million, six hundred nineteen thousand, sixty-five".