205451545103 has 8 divisors (see below), whose sum is σ = 237439988640. Its totient is φ = 174122657280.

The previous prime is 205451545067. The next prime is 205451545111. The reversal of 205451545103 is 301545154502.

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

It is a cyclic number.

It is not a de Polignac number, because 205451545103 - 2¹⁰ = 205451544079 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 (205451545163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164888258 + ... + 164889503.

It is an arithmetic number, because the mean of its divisors is an integer number (29679998580).

Almost surely, 2^205451545103 is an apocalyptic number.

205451545103 is a deficient number, since it is larger than the sum of its proper divisors (31988443537).

205451545103 is an equidigital number, since it uses as much as digits as its factorization.

205451545103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329777857.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 205451545103 its reverse (301545154502), we get a palindrome (506996699605).

The spelling of 205451545103 in words is "two hundred five billion, four hundred fifty-one million, five hundred forty-five thousand, one hundred three".