16668098 has 16 divisors (see below), whose sum is σ = 26163000. Its totient is φ = 7953792.

The previous prime is 16668089. The next prime is 16668107. The reversal of 16668098 is 89086661.

It is an interprime number because it is at equal distance from previous prime (16668089) and next prime (16668107).

It can be written as a sum of positive squares in 4 ways, for example, as 10582009 + 6086089 = 3253^2 + 2467^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3548 + ... + 6776.

Almost surely, 2^16668098 is an apocalyptic number.

16668098 is a deficient number, since it is larger than the sum of its proper divisors (9494902).

16668098 is a wasteful number, since it uses less digits than its factorization.

16668098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 16668098 is about 4082.6582026910. The cubic root of 16668098 is about 255.4437895501.

The spelling of 16668098 in words is "sixteen million, six hundred sixty-eight thousand, ninety-eight".