1660106 has 24 divisors (see below), whose sum is σ = 3034080. Its totient is φ = 665496.

The previous prime is 1660103. The next prime is 1660111. The reversal of 1660106 is 6010661.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1660103) 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, 20975 + ... + 21053.

It is an arithmetic number, because the mean of its divisors is an integer number (126420).

2^1660106 is an apocalyptic number.

1660106 is a deficient number, since it is larger than the sum of its proper divisors (1373974).

1660106 is an equidigital number, since it uses as much as digits as its factorization.

1660106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1660106 is about 1288.4510079937. The cubic root of 1660106 is about 118.4073349638.

Adding to 1660106 its reverse (6010661), we get a palindrome (7670767).

The spelling of 1660106 in words is "one million, six hundred sixty thousand, one hundred six".