16664410 has 48 divisors (see below), whose sum is σ = 35458560. Its totient is φ = 5621280.

The previous prime is 16664399. The next prime is 16664411. The reversal of 16664410 is 1446661.

It is not an unprimeable number, because it can be changed into a prime (16664411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34551 + ... + 35029.

It is an arithmetic number, because the mean of its divisors is an integer number (738720).

Almost surely, 2^16664410 is an apocalyptic number.

16664410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16664410 is an abundant number, since it is smaller than the sum of its proper divisors (18794150).

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

16664410 is a wasteful number, since it uses less digits than its factorization.

16664410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 16664410 is about 4082.2065111898. The cubic root of 16664410 is about 255.4249482445.

The spelling of 16664410 in words is "sixteen million, six hundred sixty-four thousand, four hundred ten".