204560019552 has 48 divisors (see below), whose sum is σ = 613680060672. Its totient is φ = 58445719680.

The previous prime is 204560019541. The next prime is 204560019553. The reversal of 204560019552 is 255910065402.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×204560019552² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204560019552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204560019553) 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, 152201724 + ... + 152203067.

It is an arithmetic number, because the mean of its divisors is an integer number (12785001264).

Almost surely, 2^204560019552 is an apocalyptic number.

It is an amenable number.

204560019552 is an abundant number, since it is smaller than the sum of its proper divisors (409120041120).

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

204560019552 is a wasteful number, since it uses less digits than its factorization.

204560019552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304404811 (or 304404803 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 204560019552 in words is "two hundred four billion, five hundred sixty million, nineteen thousand, five hundred fifty-two".