166500105 has 24 divisors (see below), whose sum is σ = 278499648. Its totient is φ = 84935136.

The previous prime is 166500071. The next prime is 166500109. The reversal of 166500105 is 501005661.

166500105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166500105 - 2⁸ = 166499849 is a prime.

It is a super-2 number, since 2×166500105² = 55444569930022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166500109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2557 + ... + 18426.

It is an arithmetic number, because the mean of its divisors is an integer number (11604152).

Almost surely, 2^166500105 is an apocalyptic number.

166500105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166500105 is a deficient number, since it is larger than the sum of its proper divisors (111999543).

166500105 is a wasteful number, since it uses less digits than its factorization.

166500105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21037 (or 21014 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 166500105 is about 12903.4919692307. The cubic root of 166500105 is about 550.1378222101.

Adding to 166500105 its reverse (501005661), we get a palindrome (667505766).

The spelling of 166500105 in words is "one hundred sixty-six million, five hundred thousand, one hundred five".