100044020055 has 96 divisors (see below), whose sum is σ = 195341207040. Its totient is φ = 43534767360.

The previous prime is 100044020053. The next prime is 100044020077. The reversal of 100044020055 is 550020440001.

It is not a de Polignac number, because 100044020055 - 2¹ = 100044020053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100044020053) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1480312 + ... + 1546418.

It is an arithmetic number, because the mean of its divisors is an integer number (2034804240).

Almost surely, 2^100044020055 is an apocalyptic number.

100044020055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100044020055 is a deficient number, since it is larger than the sum of its proper divisors (95297186985).

100044020055 is a wasteful number, since it uses less digits than its factorization.

100044020055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66229 (or 66222 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

Adding to 100044020055 its reverse (550020440001), we get a palindrome (650064460056).

The spelling of 100044020055 in words is "one hundred billion, forty-four million, twenty thousand, fifty-five".