66066079 has 2 divisors, whose sum is σ = 66066080. Its totient is φ = 66066078.

The previous prime is 66066073. The next prime is 66066101. The reversal of 66066079 is 97066066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66066079 - 2¹⁵ = 66033311 is a prime.

It is a congruent number.

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, 33033039 + 33033040.

It is an arithmetic number, because the mean of its divisors is an integer number (33033040).

Almost surely, 2^66066079 is an apocalyptic number.

66066079 is a deficient number, since it is larger than the sum of its proper divisors (1).

66066079 is an equidigital number, since it uses as much as digits as its factorization.

66066079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 66066079 is about 8128.1042685241. The cubic root of 66066079 is about 404.2588263191.

The spelling of 66066079 in words is "sixty-six million, sixty-six thousand, seventy-nine".