11660065 has 4 divisors (see below), whose sum is σ = 13992084. Its totient is φ = 9328048.

The previous prime is 11660041. The next prime is 11660101. The reversal of 11660065 is 56006611.

11660065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2099601 + 9560464 = 1449^2 + 3092^2 .

It is a cyclic number.

It is not a de Polignac number, because 11660065 - 2¹³ = 11651873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166002 + ... + 1166011.

It is an arithmetic number, because the mean of its divisors is an integer number (3498021).

Almost surely, 2^11660065 is an apocalyptic number.

It is an amenable number.

11660065 is a deficient number, since it is larger than the sum of its proper divisors (2332019).

11660065 is an equidigital number, since it uses as much as digits as its factorization.

11660065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332018.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 11660065 is about 3414.6837335250. The cubic root of 11660065 is about 226.7602830811.

Adding to 11660065 its reverse (56006611), we get a palindrome (67666676).

The spelling of 11660065 in words is "eleven million, six hundred sixty thousand, sixty-five".