501140320352 has 96 divisors (see below), whose sum is σ = 1135260499968. Its totient is φ = 213313683456.

The previous prime is 501140320339. The next prime is 501140320433. The reversal of 501140320352 is 253023041105.

It is a happy number.

It is a super-2 number, since 2×501140320352² (a number of 24 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19963553 + ... + 19988639.

It is an arithmetic number, because the mean of its divisors is an integer number (11825630208).

Almost surely, 2^501140320352 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 501140320352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567630249984).

501140320352 is an abundant number, since it is smaller than the sum of its proper divisors (634120179616).

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

501140320352 is a wasteful number, since it uses less digits than its factorization.

501140320352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25708 (or 25700 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 501140320352 its reverse (253023041105), we get a palindrome (754163361457).

The spelling of 501140320352 in words is "five hundred one billion, one hundred forty million, three hundred twenty thousand, three hundred fifty-two".