105555434450 has 12 divisors (see below), whose sum is σ = 196333108170. Its totient is φ = 42222173760.

The previous prime is 105555434441. The next prime is 105555434471. The reversal of 105555434450 is 54434555501.

It can be written as a sum of positive squares in 3 ways, for example, as 86330780041 + 19224654409 = 293821^2 + 138653^2 .

It is a super-2 number, since 2×105555434450² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105555434398 and 105555434407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1055554295 + ... + 1055554394.

Almost surely, 2^105555434450 is an apocalyptic number.

105555434450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105555434450 is a deficient number, since it is larger than the sum of its proper divisors (90777673720).

105555434450 is a wasteful number, since it uses less digits than its factorization.

105555434450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111108701 (or 2111108696 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 41.

Adding to 105555434450 its reverse (54434555501), we get a palindrome (159989989951).

It can be divided in two parts, 105 and 555434450, that added together give a palindrome (555434555).

The spelling of 105555434450 in words is "one hundred five billion, five hundred fifty-five million, four hundred thirty-four thousand, four hundred fifty".