11304047665 has 4 divisors (see below), whose sum is σ = 13564857204. Its totient is φ = 9043238128.

The previous prime is 11304047653. The next prime is 11304047747. The reversal of 11304047665 is 56674040311.

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 5543844849 + 5760202816 = 74457^2 + 75896^2 .

It is a cyclic number.

It is not a de Polignac number, because 11304047665 - 2⁵ = 11304047633 is a prime.

It is a super-3 number, since 3×11304047665³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130404762 + ... + 1130404771.

It is an arithmetic number, because the mean of its divisors is an integer number (3391214301).

Almost surely, 2^11304047665 is an apocalyptic number.

It is an amenable number.

11304047665 is a deficient number, since it is larger than the sum of its proper divisors (2260809539).

11304047665 is an equidigital number, since it uses as much as digits as its factorization.

11304047665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260809538.

The product of its (nonzero) digits is 60480, while the sum is 37.

Adding to 11304047665 its reverse (56674040311), we get a palindrome (67978087976).

The spelling of 11304047665 in words is "eleven billion, three hundred four million, forty-seven thousand, six hundred sixty-five".