5171246661 has 16 divisors (see below), whose sum is σ = 7909081088. Its totient is φ = 2944090800.

The previous prime is 5171246659. The next prime is 5171246723. The reversal of 5171246661 is 1666421715.

It is not a de Polignac number, because 5171246661 - 2¹ = 5171246659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5171246611) 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 15 ways as a sum of consecutive naturals, for example, 448645 + ... + 460026.

It is an arithmetic number, because the mean of its divisors is an integer number (494317568).

Almost surely, 2^5171246661 is an apocalyptic number.

It is an amenable number.

5171246661 is a deficient number, since it is larger than the sum of its proper divisors (2737834427).

5171246661 is a wasteful number, since it uses less digits than its factorization.

5171246661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908952.

The product of its digits is 60480, while the sum is 39.

The square root of 5171246661 is about 71911.3806083571. The cubic root of 5171246661 is about 1729.2790675605.

The spelling of 5171246661 in words is "five billion, one hundred seventy-one million, two hundred forty-six thousand, six hundred sixty-one".