100544666605 has 16 divisors (see below), whose sum is σ = 120945324528. Its totient is φ = 80241408000.

The previous prime is 100544666591. The next prime is 100544666617. The reversal of 100544666605 is 506666445001.

It can be written as a sum of positive squares in 8 ways, for example, as 31573161 + 100513093444 = 5619^2 + 317038^2 .

It is a de Polignac number, because none of the positive numbers 2^k-100544666605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5933545 + ... + 5950465.

It is an arithmetic number, because the mean of its divisors is an integer number (7559082783).

Almost surely, 2^100544666605 is an apocalyptic number.

It is an amenable number.

100544666605 is a deficient number, since it is larger than the sum of its proper divisors (20400657923).

100544666605 is a wasteful number, since it uses less digits than its factorization.

100544666605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19728.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 100544666605 in words is "one hundred billion, five hundred forty-four million, six hundred sixty-six thousand, six hundred five".