1306066505287 has 2 divisors, whose sum is σ = 1306066505288. Its totient is φ = 1306066505286.

The previous prime is 1306066505257. The next prime is 1306066505323. The reversal of 1306066505287 is 7825056606031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1306066505287 - 2³⁹ = 756310691399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1306066505287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1306066505207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653033252643 + 653033252644.

It is an arithmetic number, because the mean of its divisors is an integer number (653033252644).

Almost surely, 2^{1306066505287} is an apocalyptic number.

1306066505287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306066505287 is an equidigital number, since it uses as much as digits as its factorization.

1306066505287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 1306066505287 in words is "one trillion, three hundred six billion, sixty-six million, five hundred five thousand, two hundred eighty-seven".