204553503132240 has 160 divisors (see below), whose sum is σ = 654579155966976. Its totient is φ = 52787360010240.

The previous prime is 204553503132239. The next prime is 204553503132313. The reversal of 204553503132240 is 42231305355402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1101570282 + ... + 1101755958.

Almost surely, 2^{204553503132240} is an apocalyptic number.

204553503132240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204553503132240 is an abundant number, since it is smaller than the sum of its proper divisors (450025652834736).

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

204553503132240 is a wasteful number, since it uses less digits than its factorization.

204553503132240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333797 (or 333791 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 204553503132240 its reverse (42231305355402), we get a palindrome (246784808487642).

The spelling of 204553503132240 in words is "two hundred four trillion, five hundred fifty-three billion, five hundred three million, one hundred thirty-two thousand, two hundred forty".