2005551443245 has 8 divisors (see below), whose sum is σ = 2750470550784. Its totient is φ = 1375235275344.

The previous prime is 2005551443227. The next prime is 2005551443347. The reversal of 2005551443245 is 5423441555002.

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

It is not a de Polignac number, because 2005551443245 - 2¹¹ = 2005551441197 is a prime.

It is a super-2 number, since 2×2005551443245² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2005551443198 and 2005551443207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28650734869 + ... + 28650734938.

It is an arithmetic number, because the mean of its divisors is an integer number (343808818848).

Almost surely, 2^{2005551443245} is an apocalyptic number.

It is an amenable number.

2005551443245 is a deficient number, since it is larger than the sum of its proper divisors (744919107539).

2005551443245 is an equidigital number, since it uses as much as digits as its factorization.

2005551443245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57301469819.

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 2005551443245 its reverse (5423441555002), we get a palindrome (7428992998247).

The spelling of 2005551443245 in words is "two trillion, five billion, five hundred fifty-one million, four hundred forty-three thousand, two hundred forty-five".