205134413555142 has 48 divisors (see below), whose sum is σ = 473040833101200. Its totient is φ = 64022444199936.

The previous prime is 205134413555087. The next prime is 205134413555143. The reversal of 205134413555142 is 241555314431502.

205134413555142 is a `hidden beast` number, since 2 + 0 + 5 + 1 + 3 + 44 + 13 + 5 + 551 + 42 = 666.

It is a super-2 number, since 2×205134413555142² (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 (205134413555143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1736660892 + ... + 1736779007.

It is an arithmetic number, because the mean of its divisors is an integer number (9855017356275).

Almost surely, 2^{205134413555142} is an apocalyptic number.

205134413555142 is an abundant number, since it is smaller than the sum of its proper divisors (267906419546058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205134413555142 is a wasteful number, since it uses less digits than its factorization.

205134413555142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473440117 (or 3473440114 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

Adding to 205134413555142 its reverse (241555314431502), we get a palindrome (446689727986644).

The spelling of 205134413555142 in words is "two hundred five trillion, one hundred thirty-four billion, four hundred thirteen million, five hundred fifty-five thousand, one hundred forty-two".