204240052560 has 40 divisors (see below), whose sum is σ = 633144163680. Its totient is φ = 54464013952.

The previous prime is 204240052501. The next prime is 204240052567. The reversal of 204240052560 is 65250042402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204240052567) 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, 425499870 + ... + 425500349.

It is an arithmetic number, because the mean of its divisors is an integer number (15828604092).

Almost surely, 2^204240052560 is an apocalyptic number.

204240052560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204240052560 is an abundant number, since it is smaller than the sum of its proper divisors (428904111120).

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

204240052560 is a wasteful number, since it uses less digits than its factorization.

204240052560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851000235 (or 851000229 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 204240052560 its reverse (65250042402), we get a palindrome (269490094962).

The spelling of 204240052560 in words is "two hundred four billion, two hundred forty million, fifty-two thousand, five hundred sixty".