204441557136 has 40 divisors (see below), whose sum is σ = 529401220320. Its totient is φ = 67984536576.

The previous prime is 204441557129. The next prime is 204441557137. The reversal of 204441557136 is 631755144402.

It is not an unprimeable number, because it can be changed into a prime (204441557137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5062465 + ... + 5102688.

It is an arithmetic number, because the mean of its divisors is an integer number (13235030508).

Almost surely, 2^204441557136 is an apocalyptic number.

It is an amenable number.

204441557136 is an abundant number, since it is smaller than the sum of its proper divisors (324959663184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204441557136 is a wasteful number, since it uses less digits than its factorization.

204441557136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10165583 (or 10165577 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 204441557136 in words is "two hundred four billion, four hundred forty-one million, five hundred fifty-seven thousand, one hundred thirty-six".