65044220867 has 2 divisors, whose sum is σ = 65044220868. Its totient is φ = 65044220866.

The previous prime is 65044220849. The next prime is 65044220881. The reversal of 65044220867 is 76802244056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65044220867 - 2³⁰ = 63970479043 is a prime.

It is not a weakly prime, because it can be changed into another prime (65044220807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32522110433 + 32522110434.

It is an arithmetic number, because the mean of its divisors is an integer number (32522110434).

Almost surely, 2^65044220867 is an apocalyptic number.

65044220867 is a deficient number, since it is larger than the sum of its proper divisors (1).

65044220867 is an equidigital number, since it uses as much as digits as its factorization.

65044220867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 65044220867 in words is "sixty-five billion, forty-four million, two hundred twenty thousand, eight hundred sixty-seven".