16668074 has 8 divisors (see below), whose sum is σ = 25019940. Its totient is φ = 8328096.

The previous prime is 16668037. The next prime is 16668079. The reversal of 16668074 is 47086661.

It can be written as a sum of positive squares in 2 ways, for example, as 12075625 + 4592449 = 3475^2 + 2143^2 .

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

It is not an unprimeable number, because it can be changed into a prime (16668079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702 + ... + 6374.

Almost surely, 2^16668074 is an apocalyptic number.

16668074 is a deficient number, since it is larger than the sum of its proper divisors (8351866).

16668074 is a wasteful number, since it uses less digits than its factorization.

16668074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5944.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 16668074 is about 4082.6552634284. The cubic root of 16668074 is about 255.4436669475.

The spelling of 16668074 in words is "sixteen million, six hundred sixty-eight thousand, seventy-four".