168645160 has 16 divisors (see below), whose sum is σ = 379451700. Its totient is φ = 67458048.

The previous prime is 168645119. The next prime is 168645163. The reversal of 168645160 is 61546861.

It can be written as a sum of positive squares in 2 ways, for example, as 165842884 + 2802276 = 12878^2 + 1674^2 .

It is not an unprimeable number, because it can be changed into a prime (168645163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2108025 + ... + 2108104.

Almost surely, 2^168645160 is an apocalyptic number.

168645160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168645160 is an abundant number, since it is smaller than the sum of its proper divisors (210806540).

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

168645160 is a wasteful number, since it uses less digits than its factorization.

168645160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216140 (or 4216136 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 168645160 is about 12986.3451363345. The cubic root of 168645160 is about 552.4902614255.

The spelling of 168645160 in words is "one hundred sixty-eight million, six hundred forty-five thousand, one hundred sixty".