817066710432 has 384 divisors, whose sum is σ = 2911307857920. Its totient is φ = 217849927680.

The previous prime is 817066710403. The next prime is 817066710433. The reversal of 817066710432 is 234017660718.

817066710432 is a `hidden beast` number, since 81 + 70 + 6 + 6 + 71 + 0 + 432 = 666.

It is not an unprimeable number, because it can be changed into a prime (817066710433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5631633 + ... + 5774895.

It is an arithmetic number, because the mean of its divisors is an integer number (7581530880).

Almost surely, 2^817066710432 is an apocalyptic number.

817066710432 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 817066710432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455653928960).

817066710432 is an abundant number, since it is smaller than the sum of its proper divisors (2094241147488).

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

817066710432 is a wasteful number, since it uses less digits than its factorization.

817066710432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143353 (or 143339 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 817066710432 in words is "eight hundred seventeen billion, sixty-six million, seven hundred ten thousand, four hundred thirty-two".