205444201156 has 24 divisors (see below), whose sum is σ = 375274920384. Its totient is φ = 98225556000.

The previous prime is 205444201147. The next prime is 205444201163. The reversal of 205444201156 is 651102444502.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44355 + ... + 642538.

It is an arithmetic number, because the mean of its divisors is an integer number (15636455016).

Almost surely, 2^205444201156 is an apocalyptic number.

It is an amenable number.

205444201156 is a deficient number, since it is larger than the sum of its proper divisors (169830719228).

205444201156 is a wasteful number, since it uses less digits than its factorization.

205444201156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690171 (or 690169 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 205444201156 its reverse (651102444502), we get a palindrome (856546645658).

The spelling of 205444201156 in words is "two hundred five billion, four hundred forty-four million, two hundred one thousand, one hundred fifty-six".