65043361296 has 135 divisors (see below), whose sum is σ = 185994248167. Its totient is φ = 21218995200.

The previous prime is 65043361231. The next prime is 65043361337. The reversal of 65043361296 is 69216334056.

The square root of 65043361296 is 255036.

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

It can be written as a sum of positive squares in 4 ways, for example, as 40812080400 + 24231280896 = 202020^2 + 155664^2 .

It is a Duffinian 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 in 26 ways as a sum of consecutive naturals, for example, 162202696 + ... + 162203096.

Almost surely, 2^65043361296 is an apocalyptic number.

65043361296 is the 255036-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65043361296

65043361296 is an abundant number, since it is smaller than the sum of its proper divisors (120950886871).

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

65043361296 is an equidigital number, since it uses as much as digits as its factorization.

65043361296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 65043361296 in words is "sixty-five billion, forty-three million, three hundred sixty-one thousand, two hundred ninety-six".