11640011 has 4 divisors (see below), whose sum is σ = 11680032. Its totient is φ = 11599992.

The previous prime is 11640007. The next prime is 11640061. The reversal of 11640011 is 11004611.

11640011 is digitally balanced in base 3, 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 is a cyclic number.

It is not a de Polignac number, because 11640011 - 2² = 11640007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11640061) by changing a digit.

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, 19571 + ... + 20156.

It is an arithmetic number, because the mean of its divisors is an integer number (2920008).

Almost surely, 2^11640011 is an apocalyptic number.

11640011 is a deficient number, since it is larger than the sum of its proper divisors (40021).

11640011 is an equidigital number, since it uses as much as digits as its factorization.

11640011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40020.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 11640011 is about 3411.7460339246. The cubic root of 11640011 is about 226.6302077557.

Adding to 11640011 its reverse (11004611), we get a palindrome (22644622).

The spelling of 11640011 in words is "eleven million, six hundred forty thousand, eleven".