205243113452144 has 10 divisors (see below), whose sum is σ = 397658532313560. Its totient is φ = 102621556726064.

The previous prime is 205243113452137. The next prime is 205243113452239. The reversal of 205243113452144 is 441254311342502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6413847295364 + ... + 6413847295395.

It is an arithmetic number, because the mean of its divisors is an integer number (39765853231356).

Almost surely, 2^{205243113452144} is an apocalyptic number.

It is an amenable number.

205243113452144 is a deficient number, since it is larger than the sum of its proper divisors (192415418861416).

205243113452144 is a wasteful number, since it uses less digits than its factorization.

205243113452144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12827694590767 (or 12827694590761 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 205243113452144 its reverse (441254311342502), we get a palindrome (646497424794646).

The spelling of 205243113452144 in words is "two hundred five trillion, two hundred forty-three billion, one hundred thirteen million, four hundred fifty-two thousand, one hundred forty-four".