65266645236013 has 6 divisors (see below), whose sum is σ = 70673349575274. Its totient is φ = 60246134063856.

The previous prime is 65266645235969. The next prime is 65266645236017. The reversal of 65266645236013 is 31063254666256.

It can be written as a sum of positive squares in 3 ways, for example, as 108121277124 + 65158523958889 = 328818^2 + 8072083^2 .

It is not a de Polignac number, because 65266645236013 - 2⁹ = 65266645235501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65266645236017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 193096583370 + ... + 193096583707.

It is an arithmetic number, because the mean of its divisors is an integer number (11778891595879).

Almost surely, 2^{65266645236013} is an apocalyptic number.

It is an amenable number.

65266645236013 is a deficient number, since it is larger than the sum of its proper divisors (5406704339261).

65266645236013 is a wasteful number, since it uses less digits than its factorization.

65266645236013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386193167103 (or 386193167090 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 55.

The spelling of 65266645236013 in words is "sixty-five trillion, two hundred sixty-six billion, six hundred forty-five million, two hundred thirty-six thousand, thirteen".