1305423660506 has 24 divisors (see below), whose sum is σ = 2277974212020. Its totient is φ = 559432128192.

The previous prime is 1305423660503. The next prime is 1305423660517. The reversal of 1305423660506 is 6050663245031.

It can be written as a sum of positive squares in 2 ways, for example, as 1300874832481 + 4548828025 = 1140559^2 + 67445^2 .

It is not an unprimeable number, because it can be changed into a prime (1305423660503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1180046 + ... + 2000838.

Almost surely, 2^{1305423660506} is an apocalyptic number.

1305423660506 is a deficient number, since it is larger than the sum of its proper divisors (972550551514).

1305423660506 is a wasteful number, since it uses less digits than its factorization.

1305423660506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837038 (or 837031 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 1305423660506 in words is "one trillion, three hundred five billion, four hundred twenty-three million, six hundred sixty thousand, five hundred six".