665113410293 has 2 divisors, whose sum is σ = 665113410294. Its totient is φ = 665113410292.

The previous prime is 665113410217. The next prime is 665113410343. The reversal of 665113410293 is 392014311566.

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., 664547779204 + 565631089 = 815198^2 + 23783^2 .

It is a cyclic number.

It is not a de Polignac number, because 665113410293 - 2²⁰ = 665112361717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 665113410293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (665113416293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332556705146 + 332556705147.

It is an arithmetic number, because the mean of its divisors is an integer number (332556705147).

Almost surely, 2^665113410293 is an apocalyptic number.

It is an amenable number.

665113410293 is a deficient number, since it is larger than the sum of its proper divisors (1).

665113410293 is an equidigital number, since it uses as much as digits as its factorization.

665113410293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 665113410293 in words is "six hundred sixty-five billion, one hundred thirteen million, four hundred ten thousand, two hundred ninety-three".