5111165671 has 2 divisors, whose sum is σ = 5111165672. Its totient is φ = 5111165670.

The previous prime is 5111165669. The next prime is 5111165687. The reversal of 5111165671 is 1765611115.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5111165671 - 2¹ = 5111165669 is a prime.

It is a super-2 number, since 2×5111165671² = 52248029032817760482, which contains 22 as substring.

Together with 5111165669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5111165771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555582835 + 2555582836.

It is an arithmetic number, because the mean of its divisors is an integer number (2555582836).

Almost surely, 2^5111165671 is an apocalyptic number.

5111165671 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111165671 is an equidigital number, since it uses as much as digits as its factorization.

5111165671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 34.

The square root of 5111165671 is about 71492.4168775962. The cubic root of 5111165671 is about 1722.5558800350. Note that the first 3 decimals are identical.

Adding to 5111165671 its reverse (1765611115), we get a palindrome (6876776786).

The spelling of 5111165671 in words is "five billion, one hundred eleven million, one hundred sixty-five thousand, six hundred seventy-one".