4345136664565 has 12 divisors (see below), whose sum is σ = 5244478072164. Its totient is φ = 3456016095104.

The previous prime is 4345136664551. The next prime is 4345136664587. The reversal of 4345136664565 is 5654666315434.

It can be written as a sum of positive squares in 6 ways, for example, as 2065839913809 + 2279296750756 = 1437303^2 + 1509734^2 .

It is not a de Polignac number, because 4345136664565 - 2²⁵ = 4345103110133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14368504 + ... + 14667793.

It is an arithmetic number, because the mean of its divisors is an integer number (437039839347).

Almost surely, 2^{4345136664565} is an apocalyptic number.

It is an amenable number.

4345136664565 is a deficient number, since it is larger than the sum of its proper divisors (899341407599).

4345136664565 is an equidigital number, since it uses as much as digits as its factorization.

4345136664565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29036648 (or 29036475 counting only the distinct ones).

The product of its digits is 93312000, while the sum is 58.

The spelling of 4345136664565 in words is "four trillion, three hundred forty-five billion, one hundred thirty-six million, six hundred sixty-four thousand, five hundred sixty-five".