1305604020604 has 12 divisors (see below), whose sum is σ = 2460561423544. Its totient is φ = 602586471024.

The previous prime is 1305604020563. The next prime is 1305604020607. The reversal of 1305604020604 is 4060204065031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305604020607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12553884762 + ... + 12553884865.

Almost surely, 2^{1305604020604} is an apocalyptic number.

It is an amenable number.

1305604020604 is a deficient number, since it is larger than the sum of its proper divisors (1154957402940).

1305604020604 is a wasteful number, since it uses less digits than its factorization.

1305604020604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25107769644 (or 25107769642 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1305604020604 its reverse (4060204065031), we get a palindrome (5365808085635).

The spelling of 1305604020604 in words is "one trillion, three hundred five billion, six hundred four million, twenty thousand, six hundred four".