204064135353 has 80 divisors (see below), whose sum is σ = 350915596416. Its totient is φ = 117187741440.

The previous prime is 204064135343. The next prime is 204064135397. The reversal of 204064135353 is 353531460402.

204064135353 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 641 + 3 + 5 + 3 + 5 + 3 = 666.

It is not a de Polignac number, because 204064135353 - 2³⁷ = 66625181881 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204064135343) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 890226 + ... + 1095732.

Almost surely, 2^204064135353 is an apocalyptic number.

204064135353 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

204064135353 is a deficient number, since it is larger than the sum of its proper divisors (146851461063).

204064135353 is a wasteful number, since it uses less digits than its factorization.

204064135353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205596 (or 205587 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 204064135353 its reverse (353531460402), we get a palindrome (557595595755).

The spelling of 204064135353 in words is "two hundred four billion, sixty-four million, one hundred thirty-five thousand, three hundred fifty-three".