1311615166345 has 16 divisors (see below), whose sum is σ = 1718552532672. Its totient is φ = 953052471360.

The previous prime is 1311615166339. The next prime is 1311615166391. The reversal of 1311615166345 is 5436615161131.

It is not a de Polignac number, because 1311615166345 - 2¹¹ = 1311615164297 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 10556022 + ... + 10679551.

It is an arithmetic number, because the mean of its divisors is an integer number (107409533292).

Almost surely, 2^{1311615166345} is an apocalyptic number.

It is an amenable number.

1311615166345 is a deficient number, since it is larger than the sum of its proper divisors (406937366327).

1311615166345 is a wasteful number, since it uses less digits than its factorization.

1311615166345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21236712.

The product of its digits is 194400, while the sum is 43.

The spelling of 1311615166345 in words is "one trillion, three hundred eleven billion, six hundred fifteen million, one hundred sixty-six thousand, three hundred forty-five".