11520303665 has 8 divisors (see below), whose sum is σ = 14887777128. Its totient is φ = 8507301120.

The previous prime is 11520303661. The next prime is 11520303689. The reversal of 11520303665 is 56630302511.

11520303665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 546484129 + 10973819536 = 23377^2 + 104756^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11520303665 - 2² = 11520303661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11520303661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88617656 + ... + 88617785.

It is an arithmetic number, because the mean of its divisors is an integer number (1860972141).

Almost surely, 2^11520303665 is an apocalyptic number.

It is an amenable number.

11520303665 is a deficient number, since it is larger than the sum of its proper divisors (3367473463).

11520303665 is a wasteful number, since it uses less digits than its factorization.

11520303665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177235459.

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 11520303665 in words is "eleven billion, five hundred twenty million, three hundred three thousand, six hundred sixty-five".