20456085174353 has 2 divisors, whose sum is σ = 20456085174354. Its totient is φ = 20456085174352.

The previous prime is 20456085174323. The next prime is 20456085174401. The reversal of 20456085174353 is 35347158065402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16963253110609 + 3492832063744 = 4118647^2 + 1868912^2 .

It is a cyclic number.

It is not a de Polignac number, because 20456085174353 - 2¹⁴ = 20456085157969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20456085174295 and 20456085174304.

It is not a weakly prime, because it can be changed into another prime (20456085174313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10228042587176 + 10228042587177.

It is an arithmetic number, because the mean of its divisors is an integer number (10228042587177).

Almost surely, 2^{20456085174353} is an apocalyptic number.

It is an amenable number.

20456085174353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20456085174353 is an equidigital number, since it uses as much as digits as its factorization.

20456085174353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096000, while the sum is 53.

The spelling of 20456085174353 in words is "twenty trillion, four hundred fifty-six billion, eighty-five million, one hundred seventy-four thousand, three hundred fifty-three".