1311606045265 has 8 divisors (see below), whose sum is σ = 1579054055040. Its totient is φ = 1045866969072.

The previous prime is 1311606045203. The next prime is 1311606045271. The reversal of 1311606045265 is 5625406061131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1311606045265 - 2¹⁷ = 1311605914193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427231705 + ... + 427234774.

It is an arithmetic number, because the mean of its divisors is an integer number (197381756880).

Almost surely, 2^{1311606045265} is an apocalyptic number.

It is an amenable number.

1311606045265 is a deficient number, since it is larger than the sum of its proper divisors (267448009775).

1311606045265 is an equidigital number, since it uses as much as digits as its factorization.

1311606045265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854466791.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 1311606045265 in words is "one trillion, three hundred eleven billion, six hundred six million, forty-five thousand, two hundred sixty-five".