665435425301 has 2 divisors, whose sum is σ = 665435425302. Its totient is φ = 665435425300.

The previous prime is 665435425297. The next prime is 665435425309. The reversal of 665435425301 is 103524534566.

665435425301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 530856502801 + 134578922500 = 728599^2 + 366850^2 .

It is a cyclic number.

It is not a de Polignac number, because 665435425301 - 2² = 665435425297 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (665435425309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332717712650 + 332717712651.

It is an arithmetic number, because the mean of its divisors is an integer number (332717712651).

Almost surely, 2^665435425301 is an apocalyptic number.

It is an amenable number.

665435425301 is a deficient number, since it is larger than the sum of its proper divisors (1).

665435425301 is an equidigital number, since it uses as much as digits as its factorization.

665435425301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 44.

Adding to 665435425301 its reverse (103524534566), we get a palindrome (768959959867).

The spelling of 665435425301 in words is "six hundred sixty-five billion, four hundred thirty-five million, four hundred twenty-five thousand, three hundred one".