505236122320 has 20 divisors (see below), whose sum is σ = 1174673984580. Its totient is φ = 202094448896.

The previous prime is 505236122311. The next prime is 505236122327. The reversal of 505236122320 is 23221632505.

It can be written as a sum of positive squares in 2 ways, for example, as 67489804944 + 437746317376 = 259788^2 + 661624^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505236122327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3157725685 + ... + 3157725844.

It is an arithmetic number, because the mean of its divisors is an integer number (58733699229).

Almost surely, 2^505236122320 is an apocalyptic number.

It is an amenable number.

505236122320 is an abundant number, since it is smaller than the sum of its proper divisors (669437862260).

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

505236122320 is a wasteful number, since it uses less digits than its factorization.

505236122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315451542 (or 6315451536 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 505236122320 its reverse (23221632505), we get a palindrome (528457754825).

The spelling of 505236122320 in words is "five hundred five billion, two hundred thirty-six million, one hundred twenty-two thousand, three hundred twenty".