1066457407 has 2 divisors, whose sum is σ = 1066457408. Its totient is φ = 1066457406.

The previous prime is 1066457393. The next prime is 1066457429. The reversal of 1066457407 is 7047546601.

It is a weak prime.

It is an emirp because it is prime and its reverse (7047546601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1066457407 - 2¹¹ = 1066455359 is a prime.

It is a super-2 number, since 2×1066457407² = 2274662801890327298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066457407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066457807) 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, 533228703 + 533228704.

It is an arithmetic number, because the mean of its divisors is an integer number (533228704).

Almost surely, 2^1066457407 is an apocalyptic number.

1066457407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066457407 is an equidigital number, since it uses as much as digits as its factorization.

1066457407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 1066457407 is about 32656.6594586770. The cubic root of 1066457407 is about 1021.6790897981.

The spelling of 1066457407 in words is "one billion, sixty-six million, four hundred fifty-seven thousand, four hundred seven".