204521204612334 has 16 divisors (see below), whose sum is σ = 409042630760400. Its totient is φ = 68173697948160.

The previous prime is 204521204612327. The next prime is 204521204612341. The reversal of 204521204612334 is 433216402125402.

It is an interprime number because it is at equal distance from previous prime (204521204612327) and next prime (204521204612341).

It is a junction number, because it is equal to n+sod(n) for n = 204521204612292 and 204521204612301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4295592 + ... + 20675940.

It is an arithmetic number, because the mean of its divisors is an integer number (25565164422525).

Almost surely, 2^{204521204612334} is an apocalyptic number.

204521204612334 is an abundant number, since it is smaller than the sum of its proper divisors (204521426148066).

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

204521204612334 is a wasteful number, since it uses less digits than its factorization.

204521204612334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18461315.

The product of its (nonzero) digits is 276480, while the sum is 39.

Adding to 204521204612334 its reverse (433216402125402), we get a palindrome (637737606737736).

The spelling of 204521204612334 in words is "two hundred four trillion, five hundred twenty-one billion, two hundred four million, six hundred twelve thousand, three hundred thirty-four".