1305604665363 has 8 divisors (see below), whose sum is σ = 1740908767168. Its totient is φ = 870351836904.

The previous prime is 1305604665329. The next prime is 1305604665373. The reversal of 1305604665363 is 3635664065031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1305604665363 - 2¹² = 1305604661267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305604665373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12758881 + ... + 12860802.

It is an arithmetic number, because the mean of its divisors is an integer number (217613595896).

Almost surely, 2^{1305604665363} is an apocalyptic number.

1305604665363 is a deficient number, since it is larger than the sum of its proper divisors (435304101805).

1305604665363 is a wasteful number, since it uses less digits than its factorization.

1305604665363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25636673.

The product of its (nonzero) digits is 3499200, while the sum is 48.

The spelling of 1305604665363 in words is "one trillion, three hundred five billion, six hundred four million, six hundred sixty-five thousand, three hundred sixty-three".