11663051165 has 8 divisors (see below), whose sum is σ = 14035311288. Its totient is φ = 9304007680.

The previous prime is 11663051083. The next prime is 11663051173. The reversal of 11663051165 is 56115036611.

11663051165 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 769119289 + 10893931876 = 27733^2 + 104374^2 .

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

It is not a de Polignac number, because 11663051165 - 2¹⁶ = 11662985629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 3302216 + ... + 3305745.

It is an arithmetic number, because the mean of its divisors is an integer number (1754413911).

Almost surely, 2^11663051165 is an apocalyptic number.

It is an amenable number.

11663051165 is a deficient number, since it is larger than the sum of its proper divisors (2372260123).

11663051165 is an equidigital number, since it uses as much as digits as its factorization.

11663051165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6608319.

The product of its (nonzero) digits is 16200, while the sum is 35.

Adding to 11663051165 its reverse (56115036611), we get a palindrome (67778087776).

The spelling of 11663051165 in words is "eleven billion, six hundred sixty-three million, fifty-one thousand, one hundred sixty-five".