16240066 has 12 divisors (see below), whose sum is σ = 25878258. Its totient is φ = 7642112.

The previous prime is 16240061. The next prime is 16240069. The reversal of 16240066 is 66004261.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12924025 + 3316041 = 3595^2 + 1821^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16240066.

It is not an unprimeable number, because it can be changed into a prime (16240061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13471 + ... + 14626.

Almost surely, 2^16240066 is an apocalyptic number.

16240066 is a deficient number, since it is larger than the sum of its proper divisors (9638192).

16240066 is a wasteful number, since it uses less digits than its factorization.

16240066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28133 (or 28116 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 16240066 is about 4029.8965247262. The cubic root of 16240066 is about 253.2382264569.

The spelling of 16240066 in words is "sixteen million, two hundred forty thousand, sixty-six".