16664527 has 8 divisors (see below), whose sum is σ = 18209232. Its totient is φ = 15124800.

The previous prime is 16664519. The next prime is 16664551. The reversal of 16664527 is 72546661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16664527 - 2³ = 16664519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16664507) 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, 11377 + ... + 12757.

It is an arithmetic number, because the mean of its divisors is an integer number (2276154).

Almost surely, 2^16664527 is an apocalyptic number.

16664527 is a deficient number, since it is larger than the sum of its proper divisors (1544705).

16664527 is a wasteful number, since it uses less digits than its factorization.

16664527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489.

The product of its digits is 60480, while the sum is 37.

The square root of 16664527 is about 4082.2208416498. The cubic root of 16664527 is about 255.4255460184.

The spelling of 16664527 in words is "sixteen million, six hundred sixty-four thousand, five hundred twenty-seven".