18366059 has 2 divisors, whose sum is σ = 18366060. Its totient is φ = 18366058.

The previous prime is 18366011. The next prime is 18366071. The reversal of 18366059 is 95066381.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18366059 - 2¹² = 18361963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18362059) 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, 9183029 + 9183030.

It is an arithmetic number, because the mean of its divisors is an integer number (9183030).

Almost surely, 2^18366059 is an apocalyptic number.

18366059 is a deficient number, since it is larger than the sum of its proper divisors (1).

18366059 is an equidigital number, since it uses as much as digits as its factorization.

18366059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 18366059 is about 4285.5640235563. The cubic root of 18366059 is about 263.8387971715.

The spelling of 18366059 in words is "eighteen million, three hundred sixty-six thousand, fifty-nine".