105550666605089 has 4 divisors (see below), whose sum is σ = 105715332232260. Its totient is φ = 105386000977920.

The previous prime is 105550666605067. The next prime is 105550666605179. The reversal of 105550666605089 is 980506666055501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92925898276864 + 12624768328225 = 9639808^2 + 3553135^2 .

It is a cyclic number.

It is not a de Polignac number, because 105550666605089 - 2³⁶ = 105481947128353 is a prime.

It is a super-2 number, since 2×105550666605089² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105550666605589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82332812624 + ... + 82332813905.

It is an arithmetic number, because the mean of its divisors is an integer number (26428833058065).

Almost surely, 2^{105550666605089} is an apocalyptic number.

It is an amenable number.

105550666605089 is a deficient number, since it is larger than the sum of its proper divisors (164665627171).

105550666605089 is an equidigital number, since it uses as much as digits as its factorization.

105550666605089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164665627170.

The product of its (nonzero) digits is 58320000, while the sum is 62.

The spelling of 105550666605089 in words is "one hundred five trillion, five hundred fifty billion, six hundred sixty-six million, six hundred five thousand, eighty-nine".