499996320558 has 48 divisors (see below), whose sum is σ = 1179640692864. Its totient is φ = 140844028080.

The previous prime is 499996320541. The next prime is 499996320611. The reversal of 499996320558 is 855023699994.

It is a super-3 number, since 3×499996320558³ (a number of 36 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 499996320492 and 499996320501.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 11955660 + ... + 11997407.

It is an arithmetic number, because the mean of its divisors is an integer number (24575847768).

Almost surely, 2^499996320558 is an apocalyptic number.

499996320558 is an abundant number, since it is smaller than the sum of its proper divisors (679644372306).

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

499996320558 is a wasteful number, since it uses less digits than its factorization.

499996320558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23953157 (or 23953150 counting only the distinct ones).

The product of its (nonzero) digits is 188956800, while the sum is 69.

The spelling of 499996320558 in words is "four hundred ninety-nine billion, nine hundred ninety-six million, three hundred twenty thousand, five hundred fifty-eight".