168671760 has 80 divisors (see below), whose sum is σ = 524174784. Its totient is φ = 44868096.

The previous prime is 168671747. The next prime is 168671761. The reversal of 168671760 is 67176861.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (168671761) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 153774 + ... + 154866.

Almost surely, 2^168671760 is an apocalyptic number.

168671760 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 168671760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262087392).

168671760 is an abundant number, since it is smaller than the sum of its proper divisors (355503024).

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

168671760 is a wasteful number, since it uses less digits than its factorization.

168671760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752 (or 1746 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 168671760 is about 12987.3692486200. The cubic root of 168671760 is about 552.5193075567.

The spelling of 168671760 in words is "one hundred sixty-eight million, six hundred seventy-one thousand, seven hundred sixty".