1316143561065 has 32 divisors (see below), whose sum is σ = 2164083699456. Its totient is φ = 682634634240.

The previous prime is 1316143561043. The next prime is 1316143561151. The reversal of 1316143561065 is 5601653416131.

It is not a de Polignac number, because 1316143561065 - 2³¹ = 1313996077417 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3226149 + ... + 3611138.

It is an arithmetic number, because the mean of its divisors is an integer number (67627615608).

Almost surely, 2^{1316143561065} is an apocalyptic number.

1316143561065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1316143561065 is a deficient number, since it is larger than the sum of its proper divisors (847940138391).

1316143561065 is a wasteful number, since it uses less digits than its factorization.

1316143561065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6837649.

The product of its (nonzero) digits is 194400, while the sum is 42.

Adding to 1316143561065 its reverse (5601653416131), we get a palindrome (6917796977196).

The spelling of 1316143561065 in words is "one trillion, three hundred sixteen billion, one hundred forty-three million, five hundred sixty-one thousand, sixty-five".