2065320657553 has 2 divisors, whose sum is σ = 2065320657554. Its totient is φ = 2065320657552.

The previous prime is 2065320657523. The next prime is 2065320657601. The reversal of 2065320657553 is 3557560235602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1250881191184 + 814439466369 = 1118428^2 + 902463^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065320657553 - 2²¹ = 2065318560401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2065320657497 and 2065320657506.

It is not a weakly prime, because it can be changed into another prime (2065320657523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032660328776 + 1032660328777.

It is an arithmetic number, because the mean of its divisors is an integer number (1032660328777).

Almost surely, 2^{2065320657553} is an apocalyptic number.

It is an amenable number.

2065320657553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065320657553 is an equidigital number, since it uses as much as digits as its factorization.

2065320657553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670000, while the sum is 49.

The spelling of 2065320657553 in words is "two trillion, sixty-five billion, three hundred twenty million, six hundred fifty-seven thousand, five hundred fifty-three".