499985500105 has 32 divisors (see below), whose sum is σ = 738485169408. Its totient is φ = 316455033600.

The previous prime is 499985500057. The next prime is 499985500169. The reversal of 499985500105 is 501005589994.

499985500105 is a nontrivial binomial coefficient, being equal to C(999986, 2).

It is not a de Polignac number, because 499985500105 - 2¹¹ = 499985498057 is a prime.

It is a super-2 number, since 2×499985500105² (a number of 24 digits) contains 22 as substring.

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, 12980575 + ... + 13019035.

It is an arithmetic number, because the mean of its divisors is an integer number (23077661544).

Almost surely, 2^499985500105 is an apocalyptic number.

499985500105 is the 999985-th triangular number and also the 499993-rd hexagonal number.

499985500105 is the 333329-th centered nonagonal number.

It is an amenable number.

499985500105 is a deficient number, since it is larger than the sum of its proper divisors (238499669303).

499985500105 is a wasteful number, since it uses less digits than its factorization.

499985500105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67057.

The product of its (nonzero) digits is 2916000, while the sum is 55.

The spelling of 499985500105 in words is "four hundred ninety-nine billion, nine hundred eighty-five million, five hundred thousand, one hundred five".