16680607 has 2 divisors, whose sum is σ = 16680608. Its totient is φ = 16680606.

The previous prime is 16680583. The next prime is 16680611. The reversal of 16680607 is 70608661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16680607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16680617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8340303 + 8340304.

It is an arithmetic number, because the mean of its divisors is an integer number (8340304).

Almost surely, 2^16680607 is an apocalyptic number.

16680607 is a deficient number, since it is larger than the sum of its proper divisors (1).

16680607 is an equidigital number, since it uses as much as digits as its factorization.

16680607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 16680607 is about 4084.1898829511. The cubic root of 16680607 is about 255.5076750107.

The spelling of 16680607 in words is "sixteen million, six hundred eighty thousand, six hundred seven".