806522540356 has 45 divisors (see below), whose sum is σ = 1529603886209. Its totient is φ = 372101074176.

The previous prime is 806522540339. The next prime is 806522540377. The reversal of 806522540356 is 653045225608.

The square root of 806522540356 is 898066.

It is a perfect power (a square), and thus also a powerful number.

806522540356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 7 ways, for example, as 786467448900 + 20055091456 = 886830^2 + 141616^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 303544980 + ... + 303547636.

Almost surely, 2^806522540356 is an apocalyptic number.

806522540356 is the 898066-th square number.

It is an amenable number.

806522540356 is a deficient number, since it is larger than the sum of its proper divisors (723081345853).

806522540356 is an frugal number, since it uses more digits than its factorization.

806522540356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370 (or 2672 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 806522540356 in words is "eight hundred six billion, five hundred twenty-two million, five hundred forty thousand, three hundred fifty-six".