4165634365613 has 6 divisors (see below), whose sum is σ = 4845737935566. Its totient is φ = 3570543741912.

The previous prime is 4165634365603. The next prime is 4165634365631. The reversal of 4165634365613 is 3165634365614.

It can be written as a sum of positive squares in only one way, i.e., 2834502225604 + 1331132140009 = 1683598^2 + 1153747^2 .

It is not a de Polignac number, because 4165634365613 - 2⁴ = 4165634365597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4165634365603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42506473070 + ... + 42506473167.

It is an arithmetic number, because the mean of its divisors is an integer number (807622989261).

Almost surely, 2^{4165634365613} is an apocalyptic number.

It is an amenable number.

4165634365613 is a deficient number, since it is larger than the sum of its proper divisors (680103569953).

4165634365613 is an equidigital number, since it uses as much as digits as its factorization.

4165634365613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85012946251 (or 85012946244 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 53.

Subtracting from 4165634365613 its reverse (3165634365614), we obtain a palindrome (999999999999).

The spelling of 4165634365613 in words is "four trillion, one hundred sixty-five billion, six hundred thirty-four million, three hundred sixty-five thousand, six hundred thirteen".