16330091 has 2 divisors, whose sum is σ = 16330092. Its totient is φ = 16330090.

The previous prime is 16330073. The next prime is 16330099. The reversal of 16330091 is 19003361.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16330091 is a prime.

It is a Chen prime.

It is equal to p_1050962 and since 16330091 and 1050962 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (16330099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8165045 + 8165046.

It is an arithmetic number, because the mean of its divisors is an integer number (8165046).

Almost surely, 2^16330091 is an apocalyptic number.

16330091 is a deficient number, since it is larger than the sum of its proper divisors (1).

16330091 is an equidigital number, since it uses as much as digits as its factorization.

16330091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 16330091 is about 4041.0507296989. The cubic root of 16330091 is about 253.7052971152.

The spelling of 16330091 in words is "sixteen million, three hundred thirty thousand, ninety-one".