520671346722 has 54 divisors (see below), whose sum is σ = 1150166586387. Its totient is φ = 170229388992.

The previous prime is 520671346717. The next prime is 520671346747. The reversal of 520671346722 is 227643176025.

520671346722 is a `hidden beast` number, since 520 + 6 + 7 + 13 + 46 + 72 + 2 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 404103047481 + 116568299241 = 635691^2 + 341421^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=510231.

It is a super-2 number, since 2×520671346722² (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 (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 162251854 + ... + 162255062.

Almost surely, 2^520671346722 is an apocalyptic number.

520671346722 is an abundant number, since it is smaller than the sum of its proper divisors (629495239665).

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

520671346722 is an frugal number, since it uses more digits than its factorization.

520671346722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6532 (or 3267 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 520671346722 in words is "five hundred twenty billion, six hundred seventy-one million, three hundred forty-six thousand, seven hundred twenty-two".