2065784845601 has 2 divisors, whose sum is σ = 2065784845602. Its totient is φ = 2065784845600.

The previous prime is 2065784845589. The next prime is 2065784845633. The reversal of 2065784845601 is 1065484875602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1587287535376 + 478497310225 = 1259876^2 + 691735^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065784845601 - 2¹⁰ = 2065784844577 is a prime.

It is not a weakly prime, because it can be changed into another prime (2065784845661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032892422800 + 1032892422801.

It is an arithmetic number, because the mean of its divisors is an integer number (1032892422801).

Almost surely, 2^{2065784845601} is an apocalyptic number.

It is an amenable number.

2065784845601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065784845601 is an equidigital number, since it uses as much as digits as its factorization.

2065784845601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 2065784845601 in words is "two trillion, sixty-five billion, seven hundred eighty-four million, eight hundred forty-five thousand, six hundred one".