16680995 has 8 divisors (see below), whose sum is σ = 21194784. Its totient is φ = 12559744.

The previous prime is 16680977. The next prime is 16681001. The reversal of 16680995 is 59908661.

16680995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 16680995 - 2⁸ = 16680739 is a prime.

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, 98039 + ... + 98208.

It is an arithmetic number, because the mean of its divisors is an integer number (2649348).

Almost surely, 2^16680995 is an apocalyptic number.

16680995 is a deficient number, since it is larger than the sum of its proper divisors (4513789).

16680995 is a wasteful number, since it uses less digits than its factorization.

16680995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196269.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 16680995 is about 4084.2373829150. The cubic root of 16680995 is about 255.5096560779.

The spelling of 16680995 in words is "sixteen million, six hundred eighty thousand, nine hundred ninety-five".