11605816667 has 2 divisors, whose sum is σ = 11605816668. Its totient is φ = 11605816666.

The previous prime is 11605816657. The next prime is 11605816679. The reversal of 11605816667 is 76661850611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11605816667 - 2³⁰ = 10532074843 is a prime.

It is not a weakly prime, because it can be changed into another prime (11605816657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5802908333 + 5802908334.

It is an arithmetic number, because the mean of its divisors is an integer number (5802908334).

Almost surely, 2^11605816667 is an apocalyptic number.

11605816667 is a deficient number, since it is larger than the sum of its proper divisors (1).

11605816667 is an equidigital number, since it uses as much as digits as its factorization.

11605816667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 11605816667 in words is "eleven billion, six hundred five million, eight hundred sixteen thousand, six hundred sixty-seven".