18660119 has 2 divisors, whose sum is σ = 18660120. Its totient is φ = 18660118.

The previous prime is 18660091. The next prime is 18660133. The reversal of 18660119 is 91106681.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18660119 is a prime.

It is a super-2 number, since 2×18660119² = 696400082188322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18660179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9330059 + 9330060.

It is an arithmetic number, because the mean of its divisors is an integer number (9330060).

Almost surely, 2^18660119 is an apocalyptic number.

18660119 is a deficient number, since it is larger than the sum of its proper divisors (1).

18660119 is an equidigital number, since it uses as much as digits as its factorization.

18660119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 18660119 is about 4319.7359873029. The cubic root of 18660119 is about 265.2394607799.

The spelling of 18660119 in words is "eighteen million, six hundred sixty thousand, one hundred nineteen".