1312455565465 has 16 divisors (see below), whose sum is σ = 1792824679296. Its totient is φ = 913012566400.

The previous prime is 1312455565451. The next prime is 1312455565481. The reversal of 1312455565465 is 5645655542131.

It is not a de Polignac number, because 1312455565465 - 2³⁹ = 762699751577 is a prime.

It is a super-2 number, since 2×1312455565465² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518755876 + ... + 518758405.

It is an arithmetic number, because the mean of its divisors is an integer number (112051542456).

Almost surely, 2^{1312455565465} is an apocalyptic number.

It is an amenable number.

1312455565465 is a deficient number, since it is larger than the sum of its proper divisors (480369113831).

1312455565465 is a wasteful number, since it uses less digits than its factorization.

1312455565465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037514320.

The product of its digits is 10800000, while the sum is 52.

The spelling of 1312455565465 in words is "one trillion, three hundred twelve billion, four hundred fifty-five million, five hundred sixty-five thousand, four hundred sixty-five".