205056154502303 has 16 divisors (see below), whose sum is σ = 233207273456640. Its totient is φ = 178871565141984.

The previous prime is 205056154502299. The next prime is 205056154502333. The reversal of 205056154502303 is 303205451650502.

It is not a de Polignac number, because 205056154502303 - 2² = 205056154502299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205056154502333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4131339863 + ... + 4131389496.

It is an arithmetic number, because the mean of its divisors is an integer number (14575454591040).

Almost surely, 2^{205056154502303} is an apocalyptic number.

205056154502303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

205056154502303 is a deficient number, since it is larger than the sum of its proper divisors (28151118954337).

205056154502303 is a wasteful number, since it uses less digits than its factorization.

205056154502303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8262729478.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 205056154502303 in words is "two hundred five trillion, fifty-six billion, one hundred fifty-four million, five hundred two thousand, three hundred three".