516135402243 has 14 divisors (see below), whose sum is σ = 773849102124. Its totient is φ = 344090267676.

The previous prime is 516135402127. The next prime is 516135402257. The reversal of 516135402243 is 342204531615.

516135402243 is a `hidden beast` number, since 5 + 1 + 6 + 1 + 3 + 5 + 402 + 243 = 666.

It is not a de Polignac number, because 516135402243 - 2¹³ = 516135394051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 516135402198 and 516135402207.

It is not an unprimeable number, because it can be changed into a prime (516135402443) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 354001605 + ... + 354003062.

It is an arithmetic number, because the mean of its divisors is an integer number (55274935866).

Almost surely, 2^516135402243 is an apocalyptic number.

516135402243 is a deficient number, since it is larger than the sum of its proper divisors (257713699881).

516135402243 is an frugal number, since it uses more digits than its factorization.

516135402243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708004685 (or 708004670 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 516135402243 its reverse (342204531615), we get a palindrome (858339933858).

The spelling of 516135402243 in words is "five hundred sixteen billion, one hundred thirty-five million, four hundred two thousand, two hundred forty-three".