5171661716 has 12 divisors (see below), whose sum is σ = 9746593332. Its totient is φ = 2386920768.

The previous prime is 5171661673. The next prime is 5171661739. The reversal of 5171661716 is 6171661715.

It can be written as a sum of positive squares in 2 ways, for example, as 2651220100 + 2520441616 = 51490^2 + 50204^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49727465 + ... + 49727568.

It is an arithmetic number, because the mean of its divisors is an integer number (812216111).

Almost surely, 2^5171661716 is an apocalyptic number.

It is an amenable number.

5171661716 is a deficient number, since it is larger than the sum of its proper divisors (4574931616).

5171661716 is a wasteful number, since it uses less digits than its factorization.

5171661716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99455050 (or 99455048 counting only the distinct ones).

The product of its digits is 52920, while the sum is 41.

The square root of 5171661716 is about 71914.2664288526. The cubic root of 5171661716 is about 1729.3253314996.

Subtracting 5171661716 from its reverse (6171661715), we obtain a palindrome (999999999).

The spelling of 5171661716 in words is "five billion, one hundred seventy-one million, six hundred sixty-one thousand, seven hundred sixteen".