166141660 has 24 divisors (see below), whose sum is σ = 349848576. Its totient is φ = 66275520.

The previous prime is 166141589. The next prime is 166141687. The reversal of 166141660 is 66141661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3676 + ... + 18595.

It is an arithmetic number, because the mean of its divisors is an integer number (14577024).

Almost surely, 2^166141660 is an apocalyptic number.

166141660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166141660 is an abundant number, since it is smaller than the sum of its proper divisors (183706916).

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

166141660 is a wasteful number, since it uses less digits than its factorization.

166141660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22653 (or 22651 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 166141660 is about 12889.5950285492. The cubic root of 166141660 is about 549.7427557343.

Subtracting from 166141660 its reverse (66141661), we obtain a palindrome (99999999).

The spelling of 166141660 in words is "one hundred sixty-six million, one hundred forty-one thousand, six hundred sixty".