512541140220 has 144 divisors (see below), whose sum is σ = 1593468912672. Its totient is φ = 133273620480.

The previous prime is 512541140207. The next prime is 512541140227. The reversal of 512541140220 is 22041145215.

It is a happy number.

512541140220 is a `hidden beast` number, since 5 + 1 + 25 + 411 + 4 + 0 + 220 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512541140227) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 14764804 + ... + 14799476.

It is an arithmetic number, because the mean of its divisors is an integer number (11065756338).

Almost surely, 2^512541140220 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 512541140220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796734456336).

512541140220 is an abundant number, since it is smaller than the sum of its proper divisors (1080927772452).

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

512541140220 is a wasteful number, since it uses less digits than its factorization.

512541140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36732 (or 36727 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 512541140220 its reverse (22041145215), we get a palindrome (534582285435).

The spelling of 512541140220 in words is "five hundred twelve billion, five hundred forty-one million, one hundred forty thousand, two hundred twenty".