204451353453552 has 80 divisors (see below), whose sum is σ = 529725491446272. Its totient is φ = 67949253734400.

The previous prime is 204451353453541. The next prime is 204451353453559. The reversal of 204451353453552 is 255354353154402.

It is a junction number, because it is equal to n+sod(n) for n = 204451353453495 and 204451353453504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204451353453559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239436873 + ... + 240289239.

Almost surely, 2^{204451353453552} is an apocalyptic number.

It is an amenable number.

204451353453552 is an abundant number, since it is smaller than the sum of its proper divisors (325274137992720).

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

204451353453552 is a wasteful number, since it uses less digits than its factorization.

204451353453552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867126 (or 867120 counting only the distinct ones).

The product of its (nonzero) digits is 21600000, while the sum is 51.

The spelling of 204451353453552 in words is "two hundred four trillion, four hundred fifty-one billion, three hundred fifty-three million, four hundred fifty-three thousand, five hundred fifty-two".