805059664 has 10 divisors (see below), whose sum is σ = 1559803130. Its totient is φ = 402529824.

The previous prime is 805059601. The next prime is 805059683. The reversal of 805059664 is 466950508.

It can be written as a sum of positive squares in only one way, i.e., 784448064 + 20611600 = 28008^2 + 4540^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 805059664.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 25158099 + ... + 25158130.

It is an arithmetic number, because the mean of its divisors is an integer number (155980313).

Almost surely, 2^805059664 is an apocalyptic number.

It is an amenable number.

805059664 is a deficient number, since it is larger than the sum of its proper divisors (754743466).

805059664 is a wasteful number, since it uses less digits than its factorization.

805059664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50316237 (or 50316231 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 805059664 is about 28373.5733385839. The cubic root of 805059664 is about 930.2707285967.

The spelling of 805059664 in words is "eight hundred five million, fifty-nine thousand, six hundred sixty-four".