516168350869 has 4 divisors (see below), whose sum is σ = 516252794796. Its totient is φ = 516083906944.

The previous prime is 516168350827. The next prime is 516168350921. The reversal of 516168350869 is 968053861615.

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

It can be written as a sum of positive squares in 2 ways, for example, as 120166222500 + 396002128369 = 346650^2 + 629287^2 .

It is a cyclic number.

It is not a de Polignac number, because 516168350869 - 2²⁷ = 516034133141 is a prime.

It is a super-2 number, since 2×516168350869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516168380869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42212794 + ... + 42225019.

It is an arithmetic number, because the mean of its divisors is an integer number (129063198699).

Almost surely, 2^516168350869 is an apocalyptic number.

It is an amenable number.

516168350869 is a deficient number, since it is larger than the sum of its proper divisors (84443927).

516168350869 is an equidigital number, since it uses as much as digits as its factorization.

516168350869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84443926.

The product of its (nonzero) digits is 9331200, while the sum is 58.

The spelling of 516168350869 in words is "five hundred sixteen billion, one hundred sixty-eight million, three hundred fifty thousand, eight hundred sixty-nine".