16478568 has 24 divisors (see below), whose sum is σ = 44629650. Its totient is φ = 5492832.

The previous prime is 16478551. The next prime is 16478569. The reversal of 16478568 is 86587461.

It is a happy number.

16478568 is a `hidden beast` number, since 16 + 4 + 78 + 568 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15350724 + 1127844 = 3918^2 + 1062^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (16478569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114363 + ... + 114506.

Almost surely, 2^16478568 is an apocalyptic number.

16478568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16478568 is an abundant number, since it is smaller than the sum of its proper divisors (28151082).

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

16478568 is a wasteful number, since it uses less digits than its factorization.

16478568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228881 (or 228874 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 16478568 is about 4059.3802482645. The cubic root of 16478568 is about 254.4718943595.

The spelling of 16478568 in words is "sixteen million, four hundred seventy-eight thousand, five hundred sixty-eight".