205454144204205 has 32 divisors (see below), whose sum is σ = 374837606083584. Its totient is φ = 95196852335616.

The previous prime is 205454144204203. The next prime is 205454144204207. The reversal of 205454144204205 is 502402441454502.

205454144204205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (205454144204203) and next prime (205454144204207).

It is not a de Polignac number, because 205454144204205 - 2¹ = 205454144204203 is a prime.

It is a super-2 number, since 2×205454144204205² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205454144204203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30988555389 + ... + 30988562018.

It is an arithmetic number, because the mean of its divisors is an integer number (11713675190112).

Almost surely, 2^{205454144204205} is an apocalyptic number.

It is an amenable number.

205454144204205 is a deficient number, since it is larger than the sum of its proper divisors (169383461879379).

205454144204205 is a wasteful number, since it uses less digits than its factorization.

205454144204205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61977117445.

The product of its (nonzero) digits is 1024000, while the sum is 42.

Adding to 205454144204205 its reverse (502402441454502), we get a palindrome (707856585658707).

The spelling of 205454144204205 in words is "two hundred five trillion, four hundred fifty-four billion, one hundred forty-four million, two hundred four thousand, two hundred five".