18080011 has 2 divisors, whose sum is σ = 18080012. Its totient is φ = 18080010.

The previous prime is 18080009. The next prime is 18080033. The reversal of 18080011 is 11008081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18080011 - 2¹ = 18080009 is a prime.

Together with 18080009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (18083011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9040005 + 9040006.

It is an arithmetic number, because the mean of its divisors is an integer number (9040006).

Almost surely, 2^18080011 is an apocalyptic number.

18080011 is a deficient number, since it is larger than the sum of its proper divisors (1).

18080011 is an equidigital number, since it uses as much as digits as its factorization.

18080011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 18080011 is about 4252.0596185849. The cubic root of 18080011 is about 262.4618768521.

Adding to 18080011 its reverse (11008081), we get a palindrome (29088092).

The spelling of 18080011 in words is "eighteen million, eighty thousand, eleven".