166660160 has 28 divisors (see below), whose sum is σ = 396860268. Its totient is φ = 66663936.

The previous prime is 166660159. The next prime is 166660171. The reversal of 166660160 is 61066661.

It can be written as a sum of positive squares in 2 ways, for example, as 116985856 + 49674304 = 10816^2 + 7048^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260087 + ... + 260726.

It is an arithmetic number, because the mean of its divisors is an integer number (14173581).

Almost surely, 2^166660160 is an apocalyptic number.

166660160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166660160 is an abundant number, since it is smaller than the sum of its proper divisors (230200108).

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

166660160 is an equidigital number, since it uses as much as digits as its factorization.

166660160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520830 (or 520820 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 166660160 is about 12909.6924827821. The cubic root of 166660160 is about 550.3140465426.

It can be divided in two parts, 1666601 and 60, that added together give a palindrome (1666661).

The spelling of 166660160 in words is "one hundred sixty-six million, six hundred sixty thousand, one hundred sixty".