166611006 has 24 divisors (see below), whose sum is σ = 374361624. Its totient is φ = 55536840.

The previous prime is 166611001. The next prime is 166611007. The reversal of 166611006 is 600116661.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166611001) 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, 170925 + ... + 171896.

It is an arithmetic number, because the mean of its divisors is an integer number (15598401).

Almost surely, 2^166611006 is an apocalyptic number.

166611006 is an abundant number, since it is smaller than the sum of its proper divisors (207750618).

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

166611006 is an equidigital number, since it uses as much as digits as its factorization.

166611006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342838 (or 342826 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 166611006 is about 12907.7885789937. The cubic root of 166611006 is about 550.2599388374.

Adding to 166611006 its reverse (600116661), we get a palindrome (766727667).

The spelling of 166611006 in words is "one hundred sixty-six million, six hundred eleven thousand, six".