66142183 has 2 divisors, whose sum is σ = 66142184. Its totient is φ = 66142182.

The previous prime is 66142151. The next prime is 66142201. The reversal of 66142183 is 38124166.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66142183 - 2⁵ = 66142151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66142123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33071091 + 33071092.

It is an arithmetic number, because the mean of its divisors is an integer number (33071092).

Almost surely, 2^66142183 is an apocalyptic number.

66142183 is a deficient number, since it is larger than the sum of its proper divisors (1).

66142183 is an equidigital number, since it uses as much as digits as its factorization.

66142183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 66142183 is about 8132.7844555232. The cubic root of 66142183 is about 404.4139937330.

The spelling of 66142183 in words is "sixty-six million, one hundred forty-two thousand, one hundred eighty-three".