666119 has 2 divisors, whose sum is σ = 666120. Its totient is φ = 666118.

The previous prime is 666109. The next prime is 666139. The reversal of 666119 is 911666.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-666119 is a prime.

It is a super-2 number, since 2×666119² = 887429044322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 666091 and 666100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333059 + 333060.

It is an arithmetic number, because the mean of its divisors is an integer number (333060).

2⁶⁶⁶¹¹⁹ is an apocalyptic number.

666119 is a deficient number, since it is larger than the sum of its proper divisors (1).

666119 is an equidigital number, since it uses as much as digits as its factorization.

666119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 29.

The square root of 666119 is about 816.1611360510. The cubic root of 666119 is about 87.3341183751.

The spelling of 666119 in words is "six hundred sixty-six thousand, one hundred nineteen".