106661105 has 4 divisors (see below), whose sum is σ = 127993332. Its totient is φ = 85328880.

The previous prime is 106661089. The next prime is 106661153. The reversal of 106661105 is 501166601.

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 32855824 + 73805281 = 5732^2 + 8591^2 .

It is not a de Polignac number, because 106661105 - 2⁴ = 106661089 is a prime.

It is a super-2 number, since 2×106661105² = 22753182639642050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10666106 + ... + 10666115.

It is an arithmetic number, because the mean of its divisors is an integer number (31998333).

Almost surely, 2^106661105 is an apocalyptic number.

It is an amenable number.

106661105 is a deficient number, since it is larger than the sum of its proper divisors (21332227).

106661105 is an equidigital number, since it uses as much as digits as its factorization.

106661105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21332226.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 106661105 is about 10327.6863333469. The cubic root of 106661105 is about 474.2441978492.

The spelling of 106661105 in words is "one hundred six million, six hundred sixty-one thousand, one hundred five".