205255240145012 has 12 divisors (see below), whose sum is σ = 359202544611456. Its totient is φ = 102625941684600.

The previous prime is 205255240144919. The next prime is 205255240145023. The reversal of 205255240145012 is 210541042552502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419321798 + ... + 419811005.

It is an arithmetic number, because the mean of its divisors is an integer number (29933545384288).

Almost surely, 2^{205255240145012} is an apocalyptic number.

It is an amenable number.

205255240145012 is a deficient number, since it is larger than the sum of its proper divisors (153947304466444).

205255240145012 is a wasteful number, since it uses less digits than its factorization.

205255240145012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839193958 (or 839193956 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 38.

Adding to 205255240145012 its reverse (210541042552502), we get a palindrome (415796282697514).

The spelling of 205255240145012 in words is "two hundred five trillion, two hundred fifty-five billion, two hundred forty million, one hundred forty-five thousand, twelve".