16668041 has 16 divisors (see below), whose sum is σ = 19152000. Its totient is φ = 14370048.

The previous prime is 16668037. The next prime is 16668079. The reversal of 16668041 is 14086661.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16668041 - 2² = 16668037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16667989 and 16668007.

It is not an unprimeable number, because it can be changed into a prime (16668541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43790 + ... + 44168.

It is an arithmetic number, because the mean of its divisors is an integer number (1197000).

Almost surely, 2^16668041 is an apocalyptic number.

It is an amenable number.

16668041 is a deficient number, since it is larger than the sum of its proper divisors (2483959).

16668041 is a wasteful number, since it uses less digits than its factorization.

16668041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 16668041 is about 4082.6512219390. The cubic root of 16668041 is about 255.4434983689.

The spelling of 16668041 in words is "sixteen million, six hundred sixty-eight thousand, forty-one".