16668452 has 24 divisors (see below), whose sum is σ = 30293760. Its totient is φ = 8016480.

The previous prime is 16668451. The next prime is 16668467. The reversal of 16668452 is 25486661.

It is not an unprimeable number, because it can be changed into a prime (16668451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28103 + ... + 28689.

It is an arithmetic number, because the mean of its divisors is an integer number (1262240).

Almost surely, 2^16668452 is an apocalyptic number.

It is an amenable number.

16668452 is a deficient number, since it is larger than the sum of its proper divisors (13625308).

16668452 is a wasteful number, since it uses less digits than its factorization.

16668452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 849 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 16668452 is about 4082.7015565677. The cubic root of 16668452 is about 255.4455979240.

The spelling of 16668452 in words is "sixteen million, six hundred sixty-eight thousand, four hundred fifty-two".