1066580939 has 2 divisors, whose sum is σ = 1066580940. Its totient is φ = 1066580938.

The previous prime is 1066580899. The next prime is 1066580951. The reversal of 1066580939 is 9390856601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1066580939 - 2¹² = 1066576843 is a prime.

It is a super-2 number, since 2×1066580939² = 2275189798876243442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066580893 and 1066580902.

It is not a weakly prime, because it can be changed into another prime (1066580239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533290469 + 533290470.

It is an arithmetic number, because the mean of its divisors is an integer number (533290470).

Almost surely, 2^1066580939 is an apocalyptic number.

1066580939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066580939 is an equidigital number, since it uses as much as digits as its factorization.

1066580939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 1066580939 is about 32658.5507792370. The cubic root of 1066580939 is about 1021.7185366582.

The spelling of 1066580939 in words is "one billion, sixty-six million, five hundred eighty thousand, nine hundred thirty-nine".