1066605539 has 2 divisors, whose sum is σ = 1066605540. Its totient is φ = 1066605538.

The previous prime is 1066605503. The next prime is 1066605571. The reversal of 1066605539 is 9355066601.

It is a strong prime.

It is an emirp because it is prime and its reverse (9355066601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1066605539 - 2¹² = 1066601443 is a prime.

It is a super-2 number, since 2×1066605539² = 2275294751650961042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066605496 and 1066605505.

It is not a weakly prime, because it can be changed into another prime (1066608539) 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, 533302769 + 533302770.

It is an arithmetic number, because the mean of its divisors is an integer number (533302770).

Almost surely, 2^1066605539 is an apocalyptic number.

1066605539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066605539 is an equidigital number, since it uses as much as digits as its factorization.

1066605539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 1066605539 is about 32658.9274012482. The cubic root of 1066605539 is about 1021.7263916904.

The spelling of 1066605539 in words is "one billion, sixty-six million, six hundred five thousand, five hundred thirty-nine".