5165613206989 has 2 divisors, whose sum is σ = 5165613206990. Its totient is φ = 5165613206988.

The previous prime is 5165613206983. The next prime is 5165613207031. The reversal of 5165613206989 is 9896023165615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4719278312100 + 446334894889 = 2172390^2 + 668083^2 .

It is a cyclic number.

It is not a de Polignac number, because 5165613206989 - 2¹³ = 5165613198797 is a prime.

It is a super-2 number, since 2×5165613206989² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5165613206983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582806603494 + 2582806603495.

It is an arithmetic number, because the mean of its divisors is an integer number (2582806603495).

Almost surely, 2^{5165613206989} is an apocalyptic number.

It is an amenable number.

5165613206989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5165613206989 is an equidigital number, since it uses as much as digits as its factorization.

5165613206989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20995200, while the sum is 61.

The spelling of 5165613206989 in words is "five trillion, one hundred sixty-five billion, six hundred thirteen million, two hundred six thousand, nine hundred eighty-nine".