205354553103 has 64 divisors (see below), whose sum is σ = 356590080000. Its totient is φ = 116748759456.

The previous prime is 205354553039. The next prime is 205354553167. The reversal of 205354553103 is 301355453502.

205354553103 is a `hidden beast` number, since 2 + 0 + 5 + 3 + 545 + 5 + 3 + 103 = 666.

It is an interprime number because it is at equal distance from previous prime (205354553039) and next prime (205354553167).

It is not a de Polignac number, because 205354553103 - 2⁶ = 205354553039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205354555103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1768138 + ... + 1880696.

It is an arithmetic number, because the mean of its divisors is an integer number (5571720000).

Almost surely, 2^205354553103 is an apocalyptic number.

205354553103 is a deficient number, since it is larger than the sum of its proper divisors (151235526897).

205354553103 is a wasteful number, since it uses less digits than its factorization.

205354553103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112786 (or 112766 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 205354553103 in words is "two hundred five billion, three hundred fifty-four million, five hundred fifty-three thousand, one hundred three".