2005551443246 has 16 divisors (see below), whose sum is σ = 3285367047648. Its totient is φ = 912601956000.

The previous prime is 2005551443227. The next prime is 2005551443347. The reversal of 2005551443246 is 6423441555002.

It is a super-2 number, since 2×2005551443246² (a number of 25 digits) contains 22 as substring.

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, 543213605 + ... + 543217296.

It is an arithmetic number, because the mean of its divisors is an integer number (205335440478).

Almost surely, 2^{2005551443246} is an apocalyptic number.

2005551443246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2005551443246 is a deficient number, since it is larger than the sum of its proper divisors (1279815604402).

2005551443246 is a wasteful number, since it uses less digits than its factorization.

2005551443246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086430987.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 2005551443246 its reverse (6423441555002), we get a palindrome (8428992998248).

The spelling of 2005551443246 in words is "two trillion, five billion, five hundred fifty-one million, four hundred forty-three thousand, two hundred forty-six".