999999516 has 12 divisors (see below), whose sum is σ = 2333332232. Its totient is φ = 333333168.

The previous prime is 999999503. The next prime is 999999527. The reversal of 999999516 is 615999999.

999999516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41666635 + ... + 41666658.

Almost surely, 2^999999516 is an apocalyptic number.

It is an amenable number.

999999516 is an abundant number, since it is smaller than the sum of its proper divisors (1333332716).

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

999999516 is a wasteful number, since it uses less digits than its factorization.

999999516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83333300 (or 83333298 counting only the distinct ones).

The product of its digits is 15943230, while the sum is 66.

The square root of 999999516 is about 31622.7689489709. The cubic root of 999999516 is about 999.9998386666. Note that the first 3 decimals are identical.

The spelling of 999999516 in words is "nine hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred sixteen".