16660694 has 16 divisors (see below), whose sum is σ = 26687232. Its totient is φ = 7781928.

The previous prime is 16660687. The next prime is 16660723. The reversal of 16660694 is 49606661.

It is a congruent 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, 2234 + ... + 6189.

It is an arithmetic number, because the mean of its divisors is an integer number (1667952).

Almost surely, 2^16660694 is an apocalyptic number.

16660694 is a deficient number, since it is larger than the sum of its proper divisors (10026538).

16660694 is a wasteful number, since it uses less digits than its factorization.

16660694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 16660694 is about 4081.7513398050. The cubic root of 16660694 is about 255.4059610803.

The spelling of 16660694 in words is "sixteen million, six hundred sixty thousand, six hundred ninety-four".