16666468 has 72 divisors (see below), whose sum is σ = 37895424. Its totient is φ = 6350400.

The previous prime is 16666453. The next prime is 16666487. The reversal of 16666468 is 86466661.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78883 + ... + 79093.

Almost surely, 2^16666468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16666468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18947712).

16666468 is an abundant number, since it is smaller than the sum of its proper divisors (21228956).

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

16666468 is a wasteful number, since it uses less digits than its factorization.

16666468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 264 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 16666468 is about 4082.4585729680. The cubic root of 16666468 is about 255.4354625262.

The spelling of 16666468 in words is "sixteen million, six hundred sixty-six thousand, four hundred sixty-eight".