16662250 has 64 divisors (see below), whose sum is σ = 34909056. Its totient is φ = 5904000.

The previous prime is 16662241. The next prime is 16662263. The reversal of 16662250 is 5226661.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 200709 + ... + 200791.

It is an arithmetic number, because the mean of its divisors is an integer number (545454).

Almost surely, 2^16662250 is an apocalyptic number.

16662250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16662250 is an abundant number, since it is smaller than the sum of its proper divisors (18246806).

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

16662250 is a wasteful number, since it uses less digits than its factorization.

16662250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 16662250 is about 4081.9419398125. The cubic root of 16662250 is about 255.4139119156.

It can be divided in two parts, 1666 and 2250, that added together give a triangular number (3916 = T₈₈).

The spelling of 16662250 in words is "sixteen million, six hundred sixty-two thousand, two hundred fifty".