516135254043 has 16 divisors (see below), whose sum is σ = 691413633536. Its totient is φ = 342476074080.

The previous prime is 516135254021. The next prime is 516135254059. The reversal of 516135254043 is 340452531615.

It is a happy number.

It is not a de Polignac number, because 516135254043 - 2¹⁰ = 516135253019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 516135253992 and 516135254010.

It is not an unprimeable number, because it can be changed into a prime (516135255043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492180 + ... + 1128942.

It is an arithmetic number, because the mean of its divisors is an integer number (43213352096).

Almost surely, 2^516135254043 is an apocalyptic number.

516135254043 is a deficient number, since it is larger than the sum of its proper divisors (175278379493).

516135254043 is a wasteful number, since it uses less digits than its factorization.

516135254043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638034.

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 516135254043 its reverse (340452531615), we get a palindrome (856587785658).

The spelling of 516135254043 in words is "five hundred sixteen billion, one hundred thirty-five million, two hundred fifty-four thousand, forty-three".