12016660 has 12 divisors (see below), whose sum is σ = 25235028. Its totient is φ = 4806656.

The previous prime is 12016633. The next prime is 12016663. The reversal of 12016660 is 6661021.

12016660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8088336 + 3928324 = 2844^2 + 1982^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12016663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300397 + ... + 300436.

It is an arithmetic number, because the mean of its divisors is an integer number (2102919).

Almost surely, 2^12016660 is an apocalyptic number.

12016660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12016660 is an abundant number, since it is smaller than the sum of its proper divisors (13218368).

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

12016660 is a wasteful number, since it uses less digits than its factorization.

12016660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600842 (or 600840 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12016660 is about 3466.5054449690. The cubic root of 12016660 is about 229.0487491800.

Adding to 12016660 its reverse (6661021), we get a palindrome (18677681).

The spelling of 12016660 in words is "twelve million, sixteen thousand, six hundred sixty".