205502555345 has 8 divisors (see below), whose sum is σ = 246636748800. Its totient is φ = 164379589360.

The previous prime is 205502555341. The next prime is 205502555437. The reversal of 205502555345 is 543555205502.

205502555345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205502555345 - 2² = 205502555341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205502555341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2766545 + ... + 2839854.

It is an arithmetic number, because the mean of its divisors is an integer number (30829593600).

Almost surely, 2^205502555345 is an apocalyptic number.

It is an amenable number.

205502555345 is a deficient number, since it is larger than the sum of its proper divisors (41134193455).

205502555345 is an equidigital number, since it uses as much as digits as its factorization.

205502555345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613735.

The product of its (nonzero) digits is 750000, while the sum is 41.

The spelling of 205502555345 in words is "two hundred five billion, five hundred two million, five hundred fifty-five thousand, three hundred forty-five".