816082818 has 16 divisors (see below), whose sum is σ = 1632783936. Its totient is φ = 271924560.

The previous prime is 816082789. The next prime is 816082831. The reversal of 816082818 is 818280618.

It is a super-2 number, since 2×816082818² = 1331982331669642248, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 816082818.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7621 + ... + 41112.

It is an arithmetic number, because the mean of its divisors is an integer number (102048996).

Almost surely, 2^816082818 is an apocalyptic number.

816082818 is an abundant number, since it is smaller than the sum of its proper divisors (816701118).

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

816082818 is a wasteful number, since it uses less digits than its factorization.

816082818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51529.

The product of its (nonzero) digits is 49152, while the sum is 42.

The square root of 816082818 is about 28567.1632823422. The cubic root of 816082818 is about 934.4973584023.

The spelling of 816082818 in words is "eight hundred sixteen million, eighty-two thousand, eight hundred eighteen".