499996320557 has 16 divisors (see below), whose sum is σ = 539840695680. Its totient is φ = 461667729600.

The previous prime is 499996320541. The next prime is 499996320611. The reversal of 499996320557 is 755023699994.

It is a cyclic number.

It is not a de Polignac number, because 499996320557 - 2⁴ = 499996320541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499996320517) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3165182 + ... + 3319392.

It is an arithmetic number, because the mean of its divisors is an integer number (33740043480).

Almost surely, 2^499996320557 is an apocalyptic number.

It is an amenable number.

499996320557 is a deficient number, since it is larger than the sum of its proper divisors (39844375123).

499996320557 is a wasteful number, since it uses less digits than its factorization.

499996320557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159124.

The product of its (nonzero) digits is 165337200, while the sum is 68.

The spelling of 499996320557 in words is "four hundred ninety-nine billion, nine hundred ninety-six million, three hundred twenty thousand, five hundred fifty-seven".