100444155443 has 8 divisors (see below), whose sum is σ = 109376576400. Its totient is φ = 91876323168.

The previous prime is 100444155437. The next prime is 100444155523. The reversal of 100444155443 is 344551444001.

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 100444155443 - 2⁸ = 100444155187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100444155043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 91146596 + ... + 91147697.

It is an arithmetic number, because the mean of its divisors is an integer number (13672072050).

Almost surely, 2^100444155443 is an apocalyptic number.

100444155443 is a deficient number, since it is larger than the sum of its proper divisors (8932420957).

100444155443 is a wasteful number, since it uses less digits than its factorization.

100444155443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182294341.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 100444155443 its reverse (344551444001), we get a palindrome (444995599444).

The spelling of 100444155443 in words is "one hundred billion, four hundred forty-four million, one hundred fifty-five thousand, four hundred forty-three".