16680367 has 4 divisors (see below), whose sum is σ = 18196776. Its totient is φ = 15163960.

The previous prime is 16680341. The next prime is 16680371. The reversal of 16680367 is 76308661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16680367 - 2⁷ = 16680239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16680467) 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, 758188 + ... + 758209.

It is an arithmetic number, because the mean of its divisors is an integer number (4549194).

Almost surely, 2^16680367 is an apocalyptic number.

16680367 is a deficient number, since it is larger than the sum of its proper divisors (1516409).

16680367 is a wasteful number, since it uses less digits than its factorization.

16680367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516408.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 16680367 is about 4084.1605012536. The cubic root of 16680367 is about 255.5064495929.

The spelling of 16680367 in words is "sixteen million, six hundred eighty thousand, three hundred sixty-seven".