168445560 has 64 divisors (see below), whose sum is σ = 527316480. Its totient is φ = 42965120.

The previous prime is 168445559. The next prime is 168445573. The reversal of 168445560 is 65544861.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 27756 + ... + 33275.

It is an arithmetic number, because the mean of its divisors is an integer number (8239320).

Almost surely, 2^168445560 is an apocalyptic number.

168445560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168445560 is an abundant number, since it is smaller than the sum of its proper divisors (358870920).

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

168445560 is a wasteful number, since it uses less digits than its factorization.

168445560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61068 (or 61064 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 168445560 is about 12978.6578658966. The cubic root of 168445560 is about 552.2722087383.

The spelling of 168445560 in words is "one hundred sixty-eight million, four hundred forty-five thousand, five hundred sixty".