1306145566 has 16 divisors (see below), whose sum is σ = 2139404400. Its totient is φ = 593126080.

The previous prime is 1306145563. The next prime is 1306145567. The reversal of 1306145566 is 6655416031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306145563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5221 + ... + 51376.

It is an arithmetic number, because the mean of its divisors is an integer number (133712775).

Almost surely, 2^1306145566 is an apocalyptic number.

1306145566 is a deficient number, since it is larger than the sum of its proper divisors (833258834).

1306145566 is a wasteful number, since it uses less digits than its factorization.

1306145566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57659.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1306145566 is about 36140.6359379577. The cubic root of 1306145566 is about 1093.1099819098.

The spelling of 1306145566 in words is "one billion, three hundred six million, one hundred forty-five thousand, five hundred sixty-six".