11640611 has 2 divisors, whose sum is σ = 11640612. Its totient is φ = 11640610.

The previous prime is 11640583. The next prime is 11640613. The reversal of 11640611 is 11604611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11640611 - 2⁶ = 11640547 is a prime.

Together with 11640613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11640613) 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 as a sum of consecutive naturals, namely, 5820305 + 5820306.

It is an arithmetic number, because the mean of its divisors is an integer number (5820306).

Almost surely, 2^11640611 is an apocalyptic number.

11640611 is a deficient number, since it is larger than the sum of its proper divisors (1).

11640611 is an equidigital number, since it uses as much as digits as its factorization.

11640611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 11640611 is about 3411.8339643072. The cubic root of 11640611 is about 226.6341016750.

The spelling of 11640611 in words is "eleven million, six hundred forty thousand, six hundred eleven".