501553103340 has 96 divisors (see below), whose sum is σ = 1423740487680. Its totient is φ = 131904504576.

The previous prime is 501553103339. The next prime is 501553103417. The reversal of 501553103340 is 43301355105.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 501553103298 and 501553103307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4144734 + ... + 4264026.

It is an arithmetic number, because the mean of its divisors is an integer number (14830630080).

Almost surely, 2^501553103340 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 501553103340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711870243840).

501553103340 is an abundant number, since it is smaller than the sum of its proper divisors (922187384340).

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

501553103340 is a wasteful number, since it uses less digits than its factorization.

501553103340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120271 (or 120269 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 501553103340 its reverse (43301355105), we get a palindrome (544854458445).

The spelling of 501553103340 in words is "five hundred one billion, five hundred fifty-three million, one hundred three thousand, three hundred forty".