204041521654456 has 16 divisors (see below), whose sum is σ = 386876480666400. Its totient is φ = 100874460143424.

The previous prime is 204041521654417. The next prime is 204041521654489. The reversal of 204041521654456 is 654456125140402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143287584720 + ... + 143287586143.

It is an arithmetic number, because the mean of its divisors is an integer number (24179780041650).

Almost surely, 2^{204041521654456} is an apocalyptic number.

It is an amenable number.

204041521654456 is a deficient number, since it is larger than the sum of its proper divisors (182834959011944).

204041521654456 is a wasteful number, since it uses less digits than its factorization.

204041521654456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286575170958 (or 286575170954 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 49.

Adding to 204041521654456 its reverse (654456125140402), we get a palindrome (858497646794858).

The spelling of 204041521654456 in words is "two hundred four trillion, forty-one billion, five hundred twenty-one million, six hundred fifty-four thousand, four hundred fifty-six".