65665150237 has 2 divisors, whose sum is σ = 65665150238. Its totient is φ = 65665150236.

The previous prime is 65665150217. The next prime is 65665150261. The reversal of 65665150237 is 73205156656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38449719396 + 27215430841 = 196086^2 + 164971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65665150237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65665150217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32832575118 + 32832575119.

It is an arithmetic number, because the mean of its divisors is an integer number (32832575119).

Almost surely, 2^65665150237 is an apocalyptic number.

It is an amenable number.

65665150237 is a deficient number, since it is larger than the sum of its proper divisors (1).

65665150237 is an equidigital number, since it uses as much as digits as its factorization.

65665150237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 65665150237 in words is "sixty-five billion, six hundred sixty-five million, one hundred fifty thousand, two hundred thirty-seven".