520860726216 has 320 divisors, whose sum is σ = 1582116624000. Its totient is φ = 159482898432.

The previous prime is 520860726181. The next prime is 520860726229. The reversal of 520860726216 is 612627068025.

520860726216 is a `hidden beast` number, since 5 + 2 + 0 + 8 + 607 + 26 + 2 + 16 = 666.

It is a super-2 number, since 2×520860726216² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 116183511 + ... + 116187993.

It is an arithmetic number, because the mean of its divisors is an integer number (4944114450).

Almost surely, 2^520860726216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520860726216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (791058312000).

520860726216 is an abundant number, since it is smaller than the sum of its proper divisors (1061255897784).

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

520860726216 is a wasteful number, since it uses less digits than its factorization.

520860726216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770 (or 4757 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 520860726216 in words is "five hundred twenty billion, eight hundred sixty million, seven hundred twenty-six thousand, two hundred sixteen".