65633481337 has 2 divisors, whose sum is σ = 65633481338. Its totient is φ = 65633481336.

The previous prime is 65633481257. The next prime is 65633481343. The reversal of 65633481337 is 73318433656.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39139082896 + 26494398441 = 197836^2 + 162771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65633481337 is a prime.

It is not a weakly prime, because it can be changed into another prime (65633481037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32816740668 + 32816740669.

It is an arithmetic number, because the mean of its divisors is an integer number (32816740669).

Almost surely, 2^65633481337 is an apocalyptic number.

It is an amenable number.

65633481337 is a deficient number, since it is larger than the sum of its proper divisors (1).

65633481337 is an equidigital number, since it uses as much as digits as its factorization.

65633481337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 49.

The spelling of 65633481337 in words is "sixty-five billion, six hundred thirty-three million, four hundred eighty-one thousand, three hundred thirty-seven".