16691359 has 2 divisors, whose sum is σ = 16691360. Its totient is φ = 16691358.

The previous prime is 16691347. The next prime is 16691371. The reversal of 16691359 is 95319661.

It is a balanced prime because it is at equal distance from previous prime (16691347) and next prime (16691371).

It is a cyclic number.

It is not a de Polignac number, because 16691359 - 2¹¹ = 16689311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16691659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8345679 + 8345680.

It is an arithmetic number, because the mean of its divisors is an integer number (8345680).

Almost surely, 2^16691359 is an apocalyptic number.

16691359 is a deficient number, since it is larger than the sum of its proper divisors (1).

16691359 is an equidigital number, since it uses as much as digits as its factorization.

16691359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 40.

The square root of 16691359 is about 4085.5059662176. The cubic root of 16691359 is about 255.5625616717.

The spelling of 16691359 in words is "sixteen million, six hundred ninety-one thousand, three hundred fifty-nine".