205055063542 has 16 divisors (see below), whose sum is σ = 355472664480. Its totient is φ = 86893316928.

The previous prime is 205055063531. The next prime is 205055063557. The reversal of 205055063542 is 245360550502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82284093 + ... + 82286584.

It is an arithmetic number, because the mean of its divisors is an integer number (22217041530).

Almost surely, 2^205055063542 is an apocalyptic number.

205055063542 is a deficient number, since it is larger than the sum of its proper divisors (150417600938).

205055063542 is a wasteful number, since it uses less digits than its factorization.

205055063542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164570775.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 205055063542 in words is "two hundred five billion, fifty-five million, sixty-three thousand, five hundred forty-two".