1066505339 has 2 divisors, whose sum is σ = 1066505340. Its totient is φ = 1066505338.

The previous prime is 1066505327. The next prime is 1066505357. The reversal of 1066505339 is 9335056601.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066505339 is a prime.

It is a super-2 number, since 2×1066505339² = 2274867276231009842, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1066505309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533252669 + 533252670.

It is an arithmetic number, because the mean of its divisors is an integer number (533252670).

Almost surely, 2^1066505339 is an apocalyptic number.

1066505339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066505339 is an equidigital number, since it uses as much as digits as its factorization.

1066505339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 38.

The square root of 1066505339 is about 32657.3933283108. The cubic root of 1066505339 is about 1021.6943960473.

The spelling of 1066505339 in words is "one billion, sixty-six million, five hundred five thousand, three hundred thirty-nine".