168402160 has 20 divisors (see below), whose sum is σ = 391535208. Its totient is φ = 67360832.

The previous prime is 168402139. The next prime is 168402161. The reversal of 168402160 is 61204861.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168402161) 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, 1052434 + ... + 1052593.

Almost surely, 2^168402160 is an apocalyptic number.

168402160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168402160 is an abundant number, since it is smaller than the sum of its proper divisors (223133048).

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

168402160 is a wasteful number, since it uses less digits than its factorization.

168402160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105040 (or 2105034 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 168402160 is about 12976.9857825305. The cubic root of 168402160 is about 552.2247736844.

The spelling of 168402160 in words is "one hundred sixty-eight million, four hundred two thousand, one hundred sixty".