516321113436 has 72 divisors (see below), whose sum is σ = 1373938675200. Its totient is φ = 163036692000.

The previous prime is 516321113423. The next prime is 516321113471. The reversal of 516321113436 is 634311123615.

516321113436 is a `hidden beast` number, since 5 + 1 + 6 + 3 + 211 + 1 + 3 + 436 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 516321113436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15545095 + ... + 15578273.

It is an arithmetic number, because the mean of its divisors is an integer number (19082481600).

Almost surely, 2^516321113436 is an apocalyptic number.

It is an amenable number.

516321113436 is an abundant number, since it is smaller than the sum of its proper divisors (857617561764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516321113436 is a wasteful number, since it uses less digits than its factorization.

516321113436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55959 (or 55954 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The spelling of 516321113436 in words is "five hundred sixteen billion, three hundred twenty-one million, one hundred thirteen thousand, four hundred thirty-six".