5166511171 has 4 divisors (see below), whose sum is σ = 5168762712. Its totient is φ = 5164259632.

The previous prime is 5166511159. The next prime is 5166511199. The reversal of 5166511171 is 1711156615.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5166511171 - 2⁵ = 5166511139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5166511111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122325 + ... + 1126918.

It is an arithmetic number, because the mean of its divisors is an integer number (1292190678).

Almost surely, 2^5166511171 is an apocalyptic number.

5166511171 is a deficient number, since it is larger than the sum of its proper divisors (2251541).

5166511171 is a wasteful number, since it uses less digits than its factorization.

5166511171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251540.

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

The square root of 5166511171 is about 71878.4471938564. The cubic root of 5166511171 is about 1728.7510527389.

Adding to 5166511171 its reverse (1711156615), we get a palindrome (6877667786).

The spelling of 5166511171 in words is "five billion, one hundred sixty-six million, five hundred eleven thousand, one hundred seventy-one".