65336983321 has 9 divisors (see below), whose sum is σ = 65598492351. Its totient is φ = 65076515712.

The previous prime is 65336983301. The next prime is 65336983331. The reversal of 65336983321 is 12338963356.

The square root of 65336983321 is 255611.

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

It can be written as a sum of positive squares in only one way, i.e., 64884825625 + 452157696 = 254725^2 + 21264^2 .

It is not a de Polignac number, because 65336983321 - 2⁵ = 65336983289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65336983301) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 113235385 + ... + 113235961.

Almost surely, 2^65336983321 is an apocalyptic number.

65336983321 is the 255611-st square number.

65336983321 is the 127806-th centered octagonal number.

It is an amenable number.

65336983321 is a deficient number, since it is larger than the sum of its proper divisors (261509030).

65336983321 is an frugal number, since it uses more digits than its factorization.

65336983321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040 (or 1020 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 49.

Multiplying 65336983321 by its sum of digits (49), we get a square (3201512182729 = 1789277²).

The spelling of 65336983321 in words is "sixty-five billion, three hundred thirty-six million, nine hundred eighty-three thousand, three hundred twenty-one".