16663086 has 48 divisors (see below), whose sum is σ = 41109120. Its totient is φ = 4828560.

The previous prime is 16663037. The next prime is 16663091. The reversal of 16663086 is 68036661.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16663086.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2725 + ... + 6383.

It is an arithmetic number, because the mean of its divisors is an integer number (856440).

Almost surely, 2^16663086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16663086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20554560).

16663086 is an abundant number, since it is smaller than the sum of its proper divisors (24446034).

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

16663086 is a wasteful number, since it uses less digits than its factorization.

16663086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701 (or 3698 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 16663086 is about 4082.0443407685. The cubic root of 16663086 is about 255.4181834968.

The spelling of 16663086 in words is "sixteen million, six hundred sixty-three thousand, eighty-six".