66693119 has 2 divisors, whose sum is σ = 66693120. Its totient is φ = 66693118.

The previous prime is 66693103. The next prime is 66693139. The reversal of 66693119 is 91139666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66693119 - 2⁴ = 66693103 is a prime.

It is a super-2 number, since 2×66693119² = 8895944243896322, which contains 22 as substring.

It is equal to p_3934796 and since 66693119 and 3934796 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66693139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33346559 + 33346560.

It is an arithmetic number, because the mean of its divisors is an integer number (33346560).

Almost surely, 2^66693119 is an apocalyptic number.

66693119 is a deficient number, since it is larger than the sum of its proper divisors (1).

66693119 is an equidigital number, since it uses as much as digits as its factorization.

66693119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 41.

The square root of 66693119 is about 8166.5855166036. The cubic root of 66693119 is about 405.5337554249.

The spelling of 66693119 in words is "sixty-six million, six hundred ninety-three thousand, one hundred nineteen".