205655182586142 has 48 divisors (see below), whose sum is σ = 444192937246080. Its totient is φ = 63433422262224.

The previous prime is 205655182586141. The next prime is 205655182586207. The reversal of 205655182586142 is 241685281556502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205655182586141) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1103941642 + ... + 1104127917.

It is an arithmetic number, because the mean of its divisors is an integer number (9254019525960).

Almost surely, 2^{205655182586142} is an apocalyptic number.

205655182586142 is an abundant number, since it is smaller than the sum of its proper divisors (238537754659938).

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

205655182586142 is a wasteful number, since it uses less digits than its factorization.

205655182586142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208069645 (or 2208069626 counting only the distinct ones).

The product of its (nonzero) digits is 46080000, while the sum is 60.

The spelling of 205655182586142 in words is "two hundred five trillion, six hundred fifty-five billion, one hundred eighty-two million, five hundred eighty-six thousand, one hundred forty-two".