16664552 has 16 divisors (see below), whose sum is σ = 31687200. Its totient is φ = 8214640.

The previous prime is 16664551. The next prime is 16664561. The reversal of 16664552 is 25546661.

It is not an unprimeable number, because it can be changed into a prime (16664551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14102 + ... + 15237.

It is an arithmetic number, because the mean of its divisors is an integer number (1980450).

Almost surely, 2^16664552 is an apocalyptic number.

It is an amenable number.

16664552 is a deficient number, since it is larger than the sum of its proper divisors (15022648).

16664552 is a wasteful number, since it uses less digits than its factorization.

16664552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29416 (or 29412 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 16664552 is about 4082.2239037074. The cubic root of 16664552 is about 255.4256737475.

The spelling of 16664552 in words is "sixteen million, six hundred sixty-four thousand, five hundred fifty-two".