65641506737 has 2 divisors, whose sum is σ = 65641506738. Its totient is φ = 65641506736.

The previous prime is 65641506713. The next prime is 65641506761. The reversal of 65641506737 is 73760514656.

It is a balanced prime because it is at equal distance from previous prime (65641506713) and next prime (65641506761).

It can be written as a sum of positive squares in only one way, i.e., 65599503376 + 42003361 = 256124^2 + 6481^2 .

It is a cyclic number.

It is not a de Polignac number, because 65641506737 - 2²⁶ = 65574397873 is a prime.

It is not a weakly prime, because it can be changed into another prime (65641506787) 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, 32820753368 + 32820753369.

It is an arithmetic number, because the mean of its divisors is an integer number (32820753369).

Almost surely, 2^65641506737 is an apocalyptic number.

It is an amenable number.

65641506737 is a deficient number, since it is larger than the sum of its proper divisors (1).

65641506737 is an equidigital number, since it uses as much as digits as its factorization.

65641506737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 65641506737 in words is "sixty-five billion, six hundred forty-one million, five hundred six thousand, seven hundred thirty-seven".