205038628163 has 4 divisors (see below), whose sum is σ = 207847376568. Its totient is φ = 202229879760.

The previous prime is 205038628147. The next prime is 205038628169. The reversal of 205038628163 is 361826830502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205038628163 - 2⁴ = 205038628147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205038628169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404374093 + ... + 1404374238.

It is an arithmetic number, because the mean of its divisors is an integer number (51961844142).

Almost surely, 2^205038628163 is an apocalyptic number.

205038628163 is a deficient number, since it is larger than the sum of its proper divisors (2808748405).

205038628163 is an equidigital number, since it uses as much as digits as its factorization.

205038628163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808748404.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 205038628163 in words is "two hundred five billion, thirty-eight million, six hundred twenty-eight thousand, one hundred sixty-three".