520541403051020 has 96 divisors (see below), whose sum is σ = 1183528505040000. Its totient is φ = 191171295811584.

The previous prime is 520541403051017. The next prime is 520541403051029. The reversal of 520541403051020 is 20150304145025.

It is not an unprimeable number, because it can be changed into a prime (520541403051029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156105422 + ... + 159405098.

It is an arithmetic number, because the mean of its divisors is an integer number (12328421927500).

Almost surely, 2^{520541403051020} 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 520541403051020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591764252520000).

520541403051020 is an abundant number, since it is smaller than the sum of its proper divisors (662987101988980).

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

520541403051020 is a wasteful number, since it uses less digits than its factorization.

520541403051020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302947 (or 3302945 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 520541403051020 its reverse (20150304145025), we get a palindrome (540691707196045).

The spelling of 520541403051020 in words is "five hundred twenty trillion, five hundred forty-one billion, four hundred three million, fifty-one thousand, twenty".