1361316163565 has 64 divisors (see below), whose sum is σ = 1794255594240. Its totient is φ = 987838156800.

The previous prime is 1361316163513. The next prime is 1361316163567. The reversal of 1361316163565 is 5653616131631.

It is not a de Polignac number, because 1361316163565 - 2⁴⁰ = 261804535789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361316163567) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 282839099 + ... + 282843911.

It is an arithmetic number, because the mean of its divisors is an integer number (28035243660).

Almost surely, 2^{1361316163565} is an apocalyptic number.

It is an amenable number.

1361316163565 is a deficient number, since it is larger than the sum of its proper divisors (432939430675).

1361316163565 is a wasteful number, since it uses less digits than its factorization.

1361316163565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6142.

The product of its digits is 874800, while the sum is 47.

The spelling of 1361316163565 in words is "one trillion, three hundred sixty-one billion, three hundred sixteen million, one hundred sixty-three thousand, five hundred sixty-five".