205213354213254 has 16 divisors (see below), whose sum is σ = 413181250095600. Its totient is φ = 67945361126240.

The previous prime is 205213354213247. The next prime is 205213354213297. The reversal of 205213354213254 is 452312453312502.

It is a super-3 number, since 3×205213354213254³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 114772568577 + ... + 114772570364.

It is an arithmetic number, because the mean of its divisors is an integer number (25823828130975).

Almost surely, 2^{205213354213254} is an apocalyptic number.

205213354213254 is an abundant number, since it is smaller than the sum of its proper divisors (207967895882346).

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

205213354213254 is a wasteful number, since it uses less digits than its factorization.

205213354213254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229545139095.

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 205213354213254 in words is "two hundred five trillion, two hundred thirteen billion, three hundred fifty-four million, two hundred thirteen thousand, two hundred fifty-four".