320254553609 has 2 divisors, whose sum is σ = 320254553610. Its totient is φ = 320254553608.

The previous prime is 320254553587. The next prime is 320254553651. The reversal of 320254553609 is 906355452023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303683655625 + 16570897984 = 551075^2 + 128728^2 .

It is a cyclic number.

It is not a de Polignac number, because 320254553609 - 2³⁶ = 251535076873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320254553609.

It is not a weakly prime, because it can be changed into another prime (320254553809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160127276804 + 160127276805.

It is an arithmetic number, because the mean of its divisors is an integer number (160127276805).

Almost surely, 2^320254553609 is an apocalyptic number.

It is an amenable number.

320254553609 is a deficient number, since it is larger than the sum of its proper divisors (1).

320254553609 is an equidigital number, since it uses as much as digits as its factorization.

320254553609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 320254553609 in words is "three hundred twenty billion, two hundred fifty-four million, five hundred fifty-three thousand, six hundred nine".