100043555450 has 12 divisors (see below), whose sum is σ = 186081013230. Its totient is φ = 40017422160.

The previous prime is 100043555441. The next prime is 100043555473. The reversal of 100043555450 is 54555340001.

It can be written as a sum of positive squares in 3 ways, for example, as 87892682089 + 12150873361 = 296467^2 + 110231^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1000435505 + ... + 1000435604.

Almost surely, 2^100043555450 is an apocalyptic number.

100043555450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100043555450 is a deficient number, since it is larger than the sum of its proper divisors (86037457780).

100043555450 is a wasteful number, since it uses less digits than its factorization.

100043555450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000871121 (or 2000871116 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 100043555450 its reverse (54555340001), we get a palindrome (154598895451).

The spelling of 100043555450 in words is "one hundred billion, forty-three million, five hundred fifty-five thousand, four hundred fifty".