1665250601141 has 2 divisors, whose sum is σ = 1665250601142. Its totient is φ = 1665250601140.

The previous prime is 1665250601129. The next prime is 1665250601153. The reversal of 1665250601141 is 1411060525661.

It is a balanced prime because it is at equal distance from previous prime (1665250601129) and next prime (1665250601153).

It can be written as a sum of positive squares in only one way, i.e., 1585912048900 + 79338552241 = 1259330^2 + 281671^2 .

It is a cyclic number.

It is not a de Polignac number, because 1665250601141 - 2²⁶ = 1665183492277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1665250601095 and 1665250601104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1665250631141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832625300570 + 832625300571.

It is an arithmetic number, because the mean of its divisors is an integer number (832625300571).

Almost surely, 2^{1665250601141} is an apocalyptic number.

It is an amenable number.

1665250601141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1665250601141 is an equidigital number, since it uses as much as digits as its factorization.

1665250601141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 1665250601141 in words is "one trillion, six hundred sixty-five billion, two hundred fifty million, six hundred one thousand, one hundred forty-one".