204516330153649 has 2 divisors, whose sum is σ = 204516330153650. Its totient is φ = 204516330153648.

The previous prime is 204516330153617. The next prime is 204516330153727. The reversal of 204516330153649 is 946351033615402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184738875729424 + 19777454424225 = 13591868^2 + 4447185^2 .

It is a cyclic number.

It is not a de Polignac number, because 204516330153649 - 2⁵ = 204516330153617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204516330153596 and 204516330153605.

It is not a weakly prime, because it can be changed into another prime (204516331153649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102258165076824 + 102258165076825.

It is an arithmetic number, because the mean of its divisors is an integer number (102258165076825).

Almost surely, 2^{204516330153649} is an apocalyptic number.

It is an amenable number.

204516330153649 is a deficient number, since it is larger than the sum of its proper divisors (1).

204516330153649 is an equidigital number, since it uses as much as digits as its factorization.

204516330153649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6998400, while the sum is 52.

The spelling of 204516330153649 in words is "two hundred four trillion, five hundred sixteen billion, three hundred thirty million, one hundred fifty-three thousand, six hundred forty-nine".