51171165170 has 8 divisors (see below), whose sum is σ = 92108097324. Its totient is φ = 20468466064.

The previous prime is 51171165167. The next prime is 51171165191. The reversal of 51171165170 is 7156117115.

It can be written as a sum of positive squares in 2 ways, for example, as 46665936529 + 4505228641 = 216023^2 + 67121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51171165170² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51171165170.

It is an unprimeable number.

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, 2558558249 + ... + 2558558268.

Almost surely, 2^51171165170 is an apocalyptic number.

51171165170 is a deficient number, since it is larger than the sum of its proper divisors (40936932154).

51171165170 is a wasteful number, since it uses less digits than its factorization.

51171165170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117116524.

The product of its (nonzero) digits is 7350, while the sum is 35.

The spelling of 51171165170 in words is "fifty-one billion, one hundred seventy-one million, one hundred sixty-five thousand, one hundred seventy".