65930319361 has 9 divisors (see below), whose sum is σ = 66194561289. Its totient is φ = 65667131136.

The previous prime is 65930319313. The next prime is 65930319373. The reversal of 65930319361 is 16391303956.

The square root of 65930319361 is 256769.

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 6842432961 + 59087886400 = 82719^2 + 243080^2 .

It is a de Polignac number, because none of the positive numbers 2^k-65930319361 is a prime.

It is a super-2 number, since 2×65930319361² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65930319761) 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, 111180681 + ... + 111181273.

Almost surely, 2^65930319361 is an apocalyptic number.

65930319361 is the 256769-th square number.

65930319361 is the 128385-th centered octagonal number.

It is an amenable number.

65930319361 is a deficient number, since it is larger than the sum of its proper divisors (264241928).

65930319361 is an frugal number, since it uses more digits than its factorization.

65930319361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 46.

The spelling of 65930319361 in words is "sixty-five billion, nine hundred thirty million, three hundred nineteen thousand, three hundred sixty-one".