320562203146553 has 2 divisors, whose sum is σ = 320562203146554. Its totient is φ = 320562203146552.

The previous prime is 320562203146541. The next prime is 320562203146589. The reversal of 320562203146553 is 355641302265023.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297677154542329 + 22885048604224 = 17253323^2 + 4783832^2 .

It is an emirp because it is prime and its reverse (355641302265023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320562203146553 - 2⁴⁰ = 319462691518777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320562203146498 and 320562203146507.

It is not a weakly prime, because it can be changed into another prime (320562203146453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160281101573276 + 160281101573277.

It is an arithmetic number, because the mean of its divisors is an integer number (160281101573277).

Almost surely, 2^{320562203146553} is an apocalyptic number.

It is an amenable number.

320562203146553 is a deficient number, since it is larger than the sum of its proper divisors (1).

320562203146553 is an equidigital number, since it uses as much as digits as its factorization.

320562203146553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 320562203146553 in words is "three hundred twenty trillion, five hundred sixty-two billion, two hundred three million, one hundred forty-six thousand, five hundred fifty-three".