205634648122 has 16 divisors (see below), whose sum is σ = 311718782592. Its totient is φ = 101728978560.

The previous prime is 205634648083. The next prime is 205634648189. The reversal of 205634648122 is 221846436502.

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, 558453 + ... + 850375.

It is an arithmetic number, because the mean of its divisors is an integer number (19482423912).

Almost surely, 2^205634648122 is an apocalyptic number.

205634648122 is a deficient number, since it is larger than the sum of its proper divisors (106084134470).

205634648122 is a wasteful number, since it uses less digits than its factorization.

205634648122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295653.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 205634648122 in words is "two hundred five billion, six hundred thirty-four million, six hundred forty-eight thousand, one hundred twenty-two".