105666606 has 24 divisors (see below), whose sum is σ = 237424824. Its totient is φ = 35222040.

The previous prime is 105666601. The next prime is 105666643. The reversal of 105666606 is 606666501.

It is a super-2 number, since 2×105666606² = 22330863247118472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105666601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108225 + ... + 109196.

It is an arithmetic number, because the mean of its divisors is an integer number (9892701).

Almost surely, 2^105666606 is an apocalyptic number.

105666606 is an abundant number, since it is smaller than the sum of its proper divisors (131758218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105666606 is an equidigital number, since it uses as much as digits as its factorization.

105666606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217438 (or 217426 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 105666606 is about 10279.4263458619. The cubic root of 105666606 is about 472.7656556000.

The spelling of 105666606 in words is "one hundred five million, six hundred sixty-six thousand, six hundred six".