166460140 has 96 divisors (see below), whose sum is σ = 458841600. Its totient is φ = 49144320.

The previous prime is 166460071. The next prime is 166460149. The reversal of 166460140 is 41064661.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 166460099 and 166460108.

It is not an unprimeable number, because it can be changed into a prime (166460149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26416 + ... + 32104.

It is an arithmetic number, because the mean of its divisors is an integer number (4779600).

Almost surely, 2^166460140 is an apocalyptic number.

166460140 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 166460140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229420800).

166460140 is an abundant number, since it is smaller than the sum of its proper divisors (292381460).

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

166460140 is a wasteful number, since it uses less digits than its factorization.

166460140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5735 (or 5733 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 166460140 is about 12901.9432644854. The cubic root of 166460140 is about 550.0938021830.

The spelling of 166460140 in words is "one hundred sixty-six million, four hundred sixty thousand, one hundred forty".