1316206565445 has 32 divisors (see below), whose sum is σ = 2149527306240. Its totient is φ = 687532380480.

The previous prime is 1316206565413. The next prime is 1316206565533. The reversal of 1316206565445 is 5445656026131.

It is a happy number.

It is not a de Polignac number, because 1316206565445 - 2⁵ = 1316206565413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1316206565394 and 1316206565403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2504149 + ... + 2983818.

It is an arithmetic number, because the mean of its divisors is an integer number (67172728320).

Almost surely, 2^{1316206565445} is an apocalyptic number.

1316206565445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1316206565445 is a deficient number, since it is larger than the sum of its proper divisors (833320740795).

1316206565445 is a wasteful number, since it uses less digits than its factorization.

1316206565445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488305.

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 1316206565445 in words is "one trillion, three hundred sixteen billion, two hundred six million, five hundred sixty-five thousand, four hundred forty-five".