16564214 has 4 divisors (see below), whose sum is σ = 24846324. Its totient is φ = 8282106.

The previous prime is 16564193. The next prime is 16564237. The reversal of 16564214 is 41246561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41246561 = 53 ⋅778237.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4141052 + ... + 4141055.

It is an arithmetic number, because the mean of its divisors is an integer number (6211581).

Almost surely, 2^16564214 is an apocalyptic number.

16564214 is a deficient number, since it is larger than the sum of its proper divisors (8282110).

16564214 is an equidigital number, since it uses as much as digits as its factorization.

16564214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8282109.

The product of its digits is 5760, while the sum is 29.

The square root of 16564214 is about 4069.9157239432. The cubic root of 16564214 is about 254.9119983406.

The spelling of 16564214 in words is "sixteen million, five hundred sixty-four thousand, two hundred fourteen".