66066043 has 2 divisors, whose sum is σ = 66066044. Its totient is φ = 66066042.

The previous prime is 66065977. The next prime is 66066073. The reversal of 66066043 is 34066066.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66066043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66065996 and 66066014.

It is not a weakly prime, because it can be changed into another prime (66066073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33033021 + 33033022.

It is an arithmetic number, because the mean of its divisors is an integer number (33033022).

Almost surely, 2^66066043 is an apocalyptic number.

66066043 is a deficient number, since it is larger than the sum of its proper divisors (1).

66066043 is an equidigital number, since it uses as much as digits as its factorization.

66066043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 66066043 is about 8128.1020539853. The cubic root of 66066043 is about 404.2587528910.

The spelling of 66066043 in words is "sixty-six million, sixty-six thousand, forty-three".