818296656 has 80 divisors (see below), whose sum is σ = 2149737408. Its totient is φ = 268185600.

The previous prime is 818296643. The next prime is 818296657. The reversal of 818296656 is 656692818.

It is a junction number, because it is equal to n+sod(n) for n = 818296599 and 818296608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818296657) 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 15 ways as a sum of consecutive naturals, for example, 842251 + ... + 843221.

Almost surely, 2^818296656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 818296656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1074868704).

818296656 is an abundant number, since it is smaller than the sum of its proper divisors (1331440752).

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

818296656 is a wasteful number, since it uses less digits than its factorization.

818296656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260 (or 1254 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 818296656 is about 28605.8849889319. The cubic root of 818296656 is about 935.3416182364.

The spelling of 818296656 in words is "eight hundred eighteen million, two hundred ninety-six thousand, six hundred fifty-six".