16662260 has 24 divisors (see below), whose sum is σ = 35176680. Its totient is φ = 6629504.

The previous prime is 16662241. The next prime is 16662263. The reversal of 16662260 is 6226661.

It can be written as a sum of positive squares in 4 ways, for example, as 11874916 + 4787344 = 3446^2 + 2188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16662263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1826 + ... + 6054.

It is an arithmetic number, because the mean of its divisors is an integer number (1465695).

Almost surely, 2^16662260 is an apocalyptic number.

16662260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16662260 is an abundant number, since it is smaller than the sum of its proper divisors (18514420).

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

16662260 is a wasteful number, since it uses less digits than its factorization.

16662260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435 (or 4433 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 16662260 is about 4081.9431647195. The cubic root of 16662260 is about 255.4139630119.

It can be divided in two parts, 166 and 62260, that added together give a palindrome (62426).

The spelling of 16662260 in words is "sixteen million, six hundred sixty-two thousand, two hundred sixty".