16680968 has 8 divisors (see below), whose sum is σ = 31276830. Its totient is φ = 8340480.

The previous prime is 16680943. The next prime is 16680971. The reversal of 16680968 is 86908661.

It can be written as a sum of positive squares in only one way, i.e., 9721924 + 6959044 = 3118^2 + 2638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042553 + ... + 1042568.

Almost surely, 2^16680968 is an apocalyptic number.

It is an amenable number.

16680968 is a deficient number, since it is larger than the sum of its proper divisors (14595862).

16680968 is a wasteful number, since it uses less digits than its factorization.

16680968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085127 (or 2085123 counting only the distinct ones).

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

The square root of 16680968 is about 4084.2340775230. The cubic root of 16680968 is about 255.5095182211.

The spelling of 16680968 in words is "sixteen million, six hundred eighty thousand, nine hundred sixty-eight".