65016064126709 has 2 divisors, whose sum is σ = 65016064126710. Its totient is φ = 65016064126708.

The previous prime is 65016064126679. The next prime is 65016064126729. The reversal of 65016064126709 is 90762146061056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50595437624209 + 14420626502500 = 7113047^2 + 3797450^2 .

It is a cyclic number.

It is not a de Polignac number, because 65016064126709 - 2¹² = 65016064122613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65016064126729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32508032063354 + 32508032063355.

It is an arithmetic number, because the mean of its divisors is an integer number (32508032063355).

Almost surely, 2^{65016064126709} is an apocalyptic number.

It is an amenable number.

65016064126709 is a deficient number, since it is larger than the sum of its proper divisors (1).

65016064126709 is an equidigital number, since it uses as much as digits as its factorization.

65016064126709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 65016064126709 in words is "sixty-five trillion, sixteen billion, sixty-four million, one hundred twenty-six thousand, seven hundred nine".