16668464 has 10 divisors (see below), whose sum is σ = 32295180. Its totient is φ = 8334224.

The previous prime is 16668451. The next prime is 16668467. The reversal of 16668464 is 46486661.

It is not an unprimeable number, because it can be changed into a prime (16668467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520874 + ... + 520905.

It is an arithmetic number, because the mean of its divisors is an integer number (3229518).

Almost surely, 2^16668464 is an apocalyptic number.

It is an amenable number.

16668464 is a deficient number, since it is larger than the sum of its proper divisors (15626716).

16668464 is a wasteful number, since it uses less digits than its factorization.

16668464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041787 (or 1041781 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 16668464 is about 4082.7030261825. The cubic root of 16668464 is about 255.4456592244.

The spelling of 16668464 in words is "sixteen million, six hundred sixty-eight thousand, four hundred sixty-four".