16601099 has 2 divisors, whose sum is σ = 16601100. Its totient is φ = 16601098.

The previous prime is 16601093. The next prime is 16601107. The reversal of 16601099 is 99010661.

It is a happy number.

16601099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (99010661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16601099 is a prime.

It is not a weakly prime, because it can be changed into another prime (16601093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8300549 + 8300550.

It is an arithmetic number, because the mean of its divisors is an integer number (8300550).

Almost surely, 2^16601099 is an apocalyptic number.

16601099 is a deficient number, since it is larger than the sum of its proper divisors (1).

16601099 is an equidigital number, since it uses as much as digits as its factorization.

16601099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 16601099 is about 4074.4446247311. Note that the first 3 decimals coincide. The cubic root of 16601099 is about 255.1010697651.

The spelling of 16601099 in words is "sixteen million, six hundred one thousand, ninety-nine".