65696232281 has 2 divisors, whose sum is σ = 65696232282. Its totient is φ = 65696232280.

The previous prime is 65696232247. The next prime is 65696232313. The reversal of 65696232281 is 18223269656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65685076681 + 11155600 = 256291^2 + 3340^2 .

It is a cyclic number.

It is not a de Polignac number, because 65696232281 - 2¹⁰ = 65696231257 is a prime.

It is a super-2 number, since 2×65696232281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65696232241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32848116140 + 32848116141.

It is an arithmetic number, because the mean of its divisors is an integer number (32848116141).

Almost surely, 2^65696232281 is an apocalyptic number.

It is an amenable number.

65696232281 is a deficient number, since it is larger than the sum of its proper divisors (1).

65696232281 is an equidigital number, since it uses as much as digits as its factorization.

65696232281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 50.

The spelling of 65696232281 in words is "sixty-five billion, six hundred ninety-six million, two hundred thirty-two thousand, two hundred eighty-one".