23666105 has 4 divisors (see below), whose sum is σ = 28399332. Its totient is φ = 18932880.

The previous prime is 23666099. The next prime is 23666107. The reversal of 23666105 is 50166632.

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 3988009 + 19678096 = 1997^2 + 4436^2 .

It is not a de Polignac number, because 23666105 - 2¹⁴ = 23649721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23666107) 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, 2366606 + ... + 2366615.

It is an arithmetic number, because the mean of its divisors is an integer number (7099833).

Almost surely, 2^23666105 is an apocalyptic number.

It is an amenable number.

23666105 is a deficient number, since it is larger than the sum of its proper divisors (4733227).

23666105 is an equidigital number, since it uses as much as digits as its factorization.

23666105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733226.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 23666105 is about 4864.7821122842. The cubic root of 23666105 is about 287.1059958858.

The spelling of 23666105 in words is "twenty-three million, six hundred sixty-six thousand, one hundred five".