512105325220 has 96 divisors (see below), whose sum is σ = 1175861062656. Its totient is φ = 186502348800.

The previous prime is 512105325161. The next prime is 512105325223. The reversal of 512105325220 is 22523501215.

It is not an unprimeable number, because it can be changed into a prime (512105325223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33330340 + ... + 33345700.

It is an arithmetic number, because the mean of its divisors is an integer number (12248552736).

Almost surely, 2^512105325220 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 512105325220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (587930531328).

512105325220 is an abundant number, since it is smaller than the sum of its proper divisors (663755737436).

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

512105325220 is a wasteful number, since it uses less digits than its factorization.

512105325220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18581 (or 18579 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 512105325220 its reverse (22523501215), we get a palindrome (534628826435).

The spelling of 512105325220 in words is "five hundred twelve billion, one hundred five million, three hundred twenty-five thousand, two hundred twenty".