520705650132 has 72 divisors (see below), whose sum is σ = 1349486218080. Its totient is φ = 169198747200.

The previous prime is 520705650097. The next prime is 520705650151. The reversal of 520705650132 is 231056507025.

520705650132 is a `hidden beast` number, since 5 + 2 + 0 + 70 + 56 + 501 + 32 = 666.

It is a super-2 number, since 2×520705650132² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 457507 + ... + 1118357.

It is an arithmetic number, because the mean of its divisors is an integer number (18742864140).

Almost surely, 2^520705650132 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 520705650132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674743109040).

520705650132 is an abundant number, since it is smaller than the sum of its proper divisors (828780567948).

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

520705650132 is a wasteful number, since it uses less digits than its factorization.

520705650132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661413 (or 661408 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The spelling of 520705650132 in words is "five hundred twenty billion, seven hundred five million, six hundred fifty thousand, one hundred thirty-two".