204561536506341 has 32 divisors (see below), whose sum is σ = 314931981278208. Its totient is φ = 115685163256320.

The previous prime is 204561536506321. The next prime is 204561536506367. The reversal of 204561536506341 is 143605635165402.

It is a happy number.

It is not a de Polignac number, because 204561536506341 - 2⁹ = 204561536505829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204561536506321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116876046 + ... + 118613376.

It is an arithmetic number, because the mean of its divisors is an integer number (9841624414944).

Almost surely, 2^{204561536506341} is an apocalyptic number.

204561536506341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

204561536506341 is a deficient number, since it is larger than the sum of its proper divisors (110370444771867).

204561536506341 is a wasteful number, since it uses less digits than its factorization.

204561536506341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795241.

The product of its (nonzero) digits is 7776000, while the sum is 51.

The spelling of 204561536506341 in words is "two hundred four trillion, five hundred sixty-one billion, five hundred thirty-six million, five hundred six thousand, three hundred forty-one".