501235558506480 has 160 divisors (see below), whose sum is σ = 1833090042728448. Its totient is φ = 110872381593600.

The previous prime is 501235558506451. The next prime is 501235558506517. The reversal of 501235558506480 is 84605855532105.

It is a happy number.

It is a super-2 number, since 2×501235558506480² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 501235558506480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4812117261 + ... + 4812221420.

Almost surely, 2^{501235558506480} is an apocalyptic number.

It is an amenable number.

501235558506480 is an abundant number, since it is smaller than the sum of its proper divisors (1331854484221968).

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

501235558506480 is a wasteful number, since it uses less digits than its factorization.

501235558506480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624338735 (or 9624338729 counting only the distinct ones).

The product of its (nonzero) digits is 28800000, while the sum is 57.

The spelling of 501235558506480 in words is "five hundred one trillion, two hundred thirty-five billion, five hundred fifty-eight million, five hundred six thousand, four hundred eighty".