204554545052020 has 24 divisors (see below), whose sum is σ = 429565654980000. Its totient is φ = 81821606521632.

The previous prime is 204554545052003. The next prime is 204554545052029. The reversal of 204554545052020 is 20250545455402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204554545052029) 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, 5168370 + ... + 20876329.

It is an arithmetic number, because the mean of its divisors is an integer number (17898568957500).

Almost surely, 2^{204554545052020} is an apocalyptic number.

204554545052020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204554545052020 is an abundant number, since it is smaller than the sum of its proper divisors (225011109927980).

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

204554545052020 is a wasteful number, since it uses less digits than its factorization.

204554545052020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26437407 (or 26437405 counting only the distinct ones).

The product of its (nonzero) digits is 1600000, while the sum is 43.

The spelling of 204554545052020 in words is "two hundred four trillion, five hundred fifty-four billion, five hundred forty-five million, fifty-two thousand, twenty".