205354463064 has 32 divisors (see below), whose sum is σ = 513442267440. Its totient is φ = 68444006400.

The previous prime is 205354463047. The next prime is 205354463071. The reversal of 205354463064 is 460364453502.

It is a happy number.

205354463064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241177 + ... + 684744.

Almost surely, 2^205354463064 is an apocalyptic number.

205354463064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

205354463064 is an abundant number, since it is smaller than the sum of its proper divisors (308087804376).

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

205354463064 is a wasteful number, since it uses less digits than its factorization.

205354463064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935171 (or 935167 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 205354463064 in words is "two hundred five billion, three hundred fifty-four million, four hundred sixty-three thousand, sixty-four".