20320566341 has 2 divisors, whose sum is σ = 20320566342. Its totient is φ = 20320566340.

The previous prime is 20320566319. The next prime is 20320566349. The reversal of 20320566341 is 14366502302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10541334241 + 9779232100 = 102671^2 + 98890^2 .

It is a cyclic number.

It is not a de Polignac number, because 20320566341 - 2¹⁴ = 20320549957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20320566298 and 20320566307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20320566349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160283170 + 10160283171.

It is an arithmetic number, because the mean of its divisors is an integer number (10160283171).

Almost surely, 2^20320566341 is an apocalyptic number.

It is an amenable number.

20320566341 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320566341 is an equidigital number, since it uses as much as digits as its factorization.

20320566341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 20320566341 in words is "twenty billion, three hundred twenty million, five hundred sixty-six thousand, three hundred forty-one".