204611550641 has 2 divisors, whose sum is σ = 204611550642. Its totient is φ = 204611550640.

The previous prime is 204611550629. The next prime is 204611550667. The reversal of 204611550641 is 146055116402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163785327616 + 40826223025 = 404704^2 + 202055^2 .

It is a cyclic number.

It is not a de Polignac number, because 204611550641 - 2¹⁰ = 204611549617 is a prime.

It is not a weakly prime, because it can be changed into another prime (204611550841) 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, 102305775320 + 102305775321.

It is an arithmetic number, because the mean of its divisors is an integer number (102305775321).

Almost surely, 2^204611550641 is an apocalyptic number.

It is an amenable number.

204611550641 is a deficient number, since it is larger than the sum of its proper divisors (1).

204611550641 is an equidigital number, since it uses as much as digits as its factorization.

204611550641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 204611550641 in words is "two hundred four billion, six hundred eleven million, five hundred fifty thousand, six hundred forty-one".