105666860 has 48 divisors (see below), whose sum is σ = 240299136. Its totient is φ = 38798592.

The previous prime is 105666791. The next prime is 105666863. The reversal of 105666860 is 68666501.

It is a super-2 number, since 2×105666860² = 22330970604519200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105666863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50189 + ... + 52251.

It is an arithmetic number, because the mean of its divisors is an integer number (5006232).

Almost surely, 2^105666860 is an apocalyptic number.

105666860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105666860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120149568).

105666860 is an abundant number, since it is smaller than the sum of its proper divisors (134632276).

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

105666860 is a wasteful number, since it uses less digits than its factorization.

105666860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282 (or 2280 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 105666860 is about 10279.4387006295. The cubic root of 105666860 is about 472.7660344090.

The spelling of 105666860 in words is "one hundred five million, six hundred sixty-six thousand, eight hundred sixty".