520211513346 has 128 divisors (see below), whose sum is σ = 1273672857600. Its totient is φ = 138333173760.

The previous prime is 520211513323. The next prime is 520211513387. The reversal of 520211513346 is 643315112025.

It is a super-2 number, since 2×520211513346² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 107014956 + ... + 107019816.

It is an arithmetic number, because the mean of its divisors is an integer number (9950569200).

Almost surely, 2^520211513346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520211513346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636836428800).

520211513346 is an abundant number, since it is smaller than the sum of its proper divisors (753461344254).

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

520211513346 is a wasteful number, since it uses less digits than its factorization.

520211513346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7224.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 520211513346 in words is "five hundred twenty billion, two hundred eleven million, five hundred thirteen thousand, three hundred forty-six".