204352553613 has 16 divisors (see below), whose sum is σ = 293497835456. Its totient is φ = 125726048640.

The previous prime is 204352553563. The next prime is 204352553689. The reversal of 204352553613 is 316355253402.

It is not a de Polignac number, because 204352553613 - 2⁹ = 204352553101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204352553113) 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, 442123 + ... + 777288.

It is an arithmetic number, because the mean of its divisors is an integer number (18343614716).

Almost surely, 2^204352553613 is an apocalyptic number.

It is an amenable number.

204352553613 is a deficient number, since it is larger than the sum of its proper divisors (89145281843).

204352553613 is a wasteful number, since it uses less digits than its factorization.

204352553613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223724.

The product of its (nonzero) digits is 324000, while the sum is 39.

The spelling of 204352553613 in words is "two hundred four billion, three hundred fifty-two million, five hundred fifty-three thousand, six hundred thirteen".