205332534453 has 4 divisors (see below), whose sum is σ = 273776712608. Its totient is φ = 136888356300.

The previous prime is 205332534349. The next prime is 205332534457. The reversal of 205332534453 is 354435233502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 205332534453 - 2¹² = 205332530357 is a prime.

It is a super-3 number, since 3×205332534453³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205332534457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34222089073 + ... + 34222089078.

It is an arithmetic number, because the mean of its divisors is an integer number (68444178152).

Almost surely, 2^205332534453 is an apocalyptic number.

It is an amenable number.

205332534453 is a deficient number, since it is larger than the sum of its proper divisors (68444178155).

205332534453 is an equidigital number, since it uses as much as digits as its factorization.

205332534453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68444178154.

The product of its (nonzero) digits is 648000, while the sum is 39.

Adding to 205332534453 its reverse (354435233502), we get a palindrome (559767767955).

The spelling of 205332534453 in words is "two hundred five billion, three hundred thirty-two million, five hundred thirty-four thousand, four hundred fifty-three".