816516303 has 16 divisors (see below), whose sum is σ = 1098720000. Its totient is φ = 539352000.

The previous prime is 816516299. The next prime is 816516313. The reversal of 816516303 is 303615618.

816516303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 816516303 - 2² = 816516299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816516313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147123 + ... + 152571.

It is an arithmetic number, because the mean of its divisors is an integer number (68670000).

Almost surely, 2^816516303 is an apocalyptic number.

816516303 is a deficient number, since it is larger than the sum of its proper divisors (282203697).

816516303 is a wasteful number, since it uses less digits than its factorization.

816516303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 816516303 is about 28574.7493952265. The cubic root of 816516303 is about 934.6627905025.

The spelling of 816516303 in words is "eight hundred sixteen million, five hundred sixteen thousand, three hundred three".