16286660 has 48 divisors (see below), whose sum is σ = 37850736. Its totient is φ = 5847552.

The previous prime is 16286659. The next prime is 16286681. The reversal of 16286660 is 6668261.

It can be written as a sum of positive squares in 8 ways, for example, as 158404 + 16128256 = 398^2 + 4016^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16286660.

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, 8774 + ... + 10466.

It is an arithmetic number, because the mean of its divisors is an integer number (788557).

Almost surely, 2^16286660 is an apocalyptic number.

16286660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16286660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18925368).

16286660 is an abundant number, since it is smaller than the sum of its proper divisors (21564076).

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

16286660 is a wasteful number, since it uses less digits than its factorization.

16286660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 16286660 is about 4035.6734258361. The cubic root of 16286660 is about 253.4801818658.

The spelling of 16286660 in words is "sixteen million, two hundred eighty-six thousand, six hundred sixty".