816648366 has 8 divisors (see below), whose sum is σ = 1633296744. Its totient is φ = 272216120.

The previous prime is 816648361. The next prime is 816648377. The reversal of 816648366 is 663846618.

It is a sphenic number, since it is the product of 3 distinct primes.

816648366 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816648361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 68054025 + ... + 68054036.

It is an arithmetic number, because the mean of its divisors is an integer number (204162093).

Almost surely, 2^816648366 is an apocalyptic number.

816648366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

816648366 is a wasteful number, since it uses less digits than its factorization.

816648366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136108066.

The product of its digits is 995328, while the sum is 48.

The square root of 816648366 is about 28577.0601357103. The cubic root of 816648366 is about 934.7131784402.

The spelling of 816648366 in words is "eight hundred sixteen million, six hundred forty-eight thousand, three hundred sixty-six".