16866552 has 16 divisors (see below), whose sum is σ = 42166440. Its totient is φ = 5622176.

The previous prime is 16866541. The next prime is 16866557. The reversal of 16866552 is 25566861.

It is a self number, because there is not a number n which added to its sum of digits gives 16866552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16866557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351363 + ... + 351410.

Almost surely, 2^16866552 is an apocalyptic number.

16866552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16866552 is an abundant number, since it is smaller than the sum of its proper divisors (25299888).

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

16866552 is a wasteful number, since it uses less digits than its factorization.

16866552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702782 (or 702778 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 16866552 is about 4106.8907947497. The cubic root of 16866552 is about 256.4535822590.

The spelling of 16866552 in words is "sixteen million, eight hundred sixty-six thousand, five hundred fifty-two".