816328250656 has 24 divisors (see below), whose sum is σ = 1658989672704. Its totient is φ = 394997540160.

The previous prime is 816328250597. The next prime is 816328250657. The reversal of 816328250656 is 656052823618.

It is not an unprimeable number, because it can be changed into a prime (816328250657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411454780 + ... + 411456763.

It is an arithmetic number, because the mean of its divisors is an integer number (69124569696).

Almost surely, 2^816328250656 is an apocalyptic number.

It is an amenable number.

816328250656 is an abundant number, since it is smaller than the sum of its proper divisors (842661422048).

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

816328250656 is a wasteful number, since it uses less digits than its factorization.

816328250656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822911584 (or 822911576 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 816328250656 in words is "eight hundred sixteen billion, three hundred twenty-eight million, two hundred fifty thousand, six hundred fifty-six".