505150203540020 has 48 divisors (see below), whose sum is σ = 1070299912303440. Its totient is φ = 200253836138496.

The previous prime is 505150203540007. The next prime is 505150203540071. The reversal of 505150203540020 is 20045302051505.

It can be written as a sum of positive squares in 8 ways, for example, as 33193522549924 + 471956680990096 = 5761382^2 + 21724564^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14919374 + ... + 35112506.

It is an arithmetic number, because the mean of its divisors is an integer number (22297914839655).

Almost surely, 2^{505150203540020} is an apocalyptic number.

It is an amenable number.

505150203540020 is an abundant number, since it is smaller than the sum of its proper divisors (565149708763420).

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

505150203540020 is a wasteful number, since it uses less digits than its factorization.

505150203540020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20204324 (or 20204322 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 505150203540020 its reverse (20045302051505), we get a palindrome (525195505591525).

The spelling of 505150203540020 in words is "five hundred five trillion, one hundred fifty billion, two hundred three million, five hundred forty thousand, twenty".