204556354136 has 16 divisors (see below), whose sum is σ = 396768790800. Its totient is φ = 98751343264.

The previous prime is 204556354117. The next prime is 204556354141. The reversal of 204556354136 is 631453655402.

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, 440853980 + ... + 440854443.

It is an arithmetic number, because the mean of its divisors is an integer number (24798049425).

Almost surely, 2^204556354136 is an apocalyptic number.

It is an amenable number.

204556354136 is a deficient number, since it is larger than the sum of its proper divisors (192212436664).

204556354136 is a wasteful number, since it uses less digits than its factorization.

204556354136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881708458 (or 881708454 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 204556354136 in words is "two hundred four billion, five hundred fifty-six million, three hundred fifty-four thousand, one hundred thirty-six".