5165555611 has 2 divisors, whose sum is σ = 5165555612. Its totient is φ = 5165555610.

The previous prime is 5165555609. The next prime is 5165555737. The reversal of 5165555611 is 1165555615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5165555611 - 2¹ = 5165555609 is a prime.

Together with 5165555609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5165555011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582777805 + 2582777806.

It is an arithmetic number, because the mean of its divisors is an integer number (2582777806).

Almost surely, 2^5165555611 is an apocalyptic number.

5165555611 is a deficient number, since it is larger than the sum of its proper divisors (1).

5165555611 is an equidigital number, since it uses as much as digits as its factorization.

5165555611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112500, while the sum is 40.

The square root of 5165555611 is about 71871.7998313664. The cubic root of 5165555611 is about 1728.6444671305.

The spelling of 5165555611 in words is "five billion, one hundred sixty-five million, five hundred fifty-five thousand, six hundred eleven".