500221510020340 has 24 divisors (see below), whose sum is σ = 1078856121613032. Its totient is φ = 194680803899520.

The previous prime is 500221510020319. The next prime is 500221510020367. The reversal of 500221510020340 is 43020015122005.

It can be written as a sum of positive squares in 4 ways, for example, as 39653770671376 + 460567739348964 = 6297124^2 + 21460842^2 .

It is a super-2 number, since 2×500221510020340² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337987506031 + ... + 337987507510.

It is an arithmetic number, because the mean of its divisors is an integer number (44952338400543).

Almost surely, 2^{500221510020340} is an apocalyptic number.

It is an amenable number.

500221510020340 is an abundant number, since it is smaller than the sum of its proper divisors (578634611592692).

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

500221510020340 is a wasteful number, since it uses less digits than its factorization.

500221510020340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675975013587 (or 675975013585 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 500221510020340 its reverse (43020015122005), we get a palindrome (543241525142345).

The spelling of 500221510020340 in words is "five hundred trillion, two hundred twenty-one billion, five hundred ten million, twenty thousand, three hundred forty".