16266644 has 6 divisors (see below), whose sum is σ = 28466634. Its totient is φ = 8133320.

The previous prime is 16266631. The next prime is 16266647. The reversal of 16266644 is 44666261.

16266644 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 only one way, i.e., 15523600 + 743044 = 3940^2 + 862^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16266647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2033327 + ... + 2033334.

It is an arithmetic number, because the mean of its divisors is an integer number (4744439).

Almost surely, 2^16266644 is an apocalyptic number.

It is an amenable number.

16266644 is a deficient number, since it is larger than the sum of its proper divisors (12199990).

16266644 is a wasteful number, since it uses less digits than its factorization.

16266644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066665 (or 4066663 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 16266644 is about 4033.1927799201. The cubic root of 16266644 is about 253.3762984991.

The spelling of 16266644 in words is "sixteen million, two hundred sixty-six thousand, six hundred forty-four".