816266316066 has 16 divisors (see below), whose sum is σ = 1685194975488. Its totient is φ = 263311714800.

The previous prime is 816266316053. The next prime is 816266316077. The reversal of 816266316066 is 660613662618.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2194264105 + ... + 2194264476.

It is an arithmetic number, because the mean of its divisors is an integer number (105324685968).

Almost surely, 2^816266316066 is an apocalyptic number.

816266316066 is an abundant number, since it is smaller than the sum of its proper divisors (868928659422).

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

816266316066 is a wasteful number, since it uses less digits than its factorization.

816266316066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388528617.

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 816266316066 in words is "eight hundred sixteen billion, two hundred sixty-six million, three hundred sixteen thousand, sixty-six".