65795544165691 has 2 divisors, whose sum is σ = 65795544165692. Its totient is φ = 65795544165690.

The previous prime is 65795544165587. The next prime is 65795544165731. The reversal of 65795544165691 is 19656144559756.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65795544165691 - 2⁷ = 65795544165563 is a prime.

It is not a weakly prime, because it can be changed into another prime (65795544165191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32897772082845 + 32897772082846.

It is an arithmetic number, because the mean of its divisors is an integer number (32897772082846).

Almost surely, 2^{65795544165691} is an apocalyptic number.

65795544165691 is a deficient number, since it is larger than the sum of its proper divisors (1).

65795544165691 is an equidigital number, since it uses as much as digits as its factorization.

65795544165691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720000, while the sum is 73.

The spelling of 65795544165691 in words is "sixty-five trillion, seven hundred ninety-five billion, five hundred forty-four million, one hundred sixty-five thousand, six hundred ninety-one".