16066213 has 4 divisors (see below), whose sum is σ = 16764768. Its totient is φ = 15367660.

The previous prime is 16066199. The next prime is 16066279. The reversal of 16066213 is 31266061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31266061 = 2113 ⋅14797.

It is a cyclic number.

It is not a de Polignac number, because 16066213 - 2⁵ = 16066181 is a prime.

It is a super-2 number, since 2×16066213² = 516246400322738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16066313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349243 + ... + 349288.

It is an arithmetic number, because the mean of its divisors is an integer number (4191192).

Almost surely, 2^16066213 is an apocalyptic number.

It is an amenable number.

16066213 is a deficient number, since it is larger than the sum of its proper divisors (698555).

16066213 is an equidigital number, since it uses as much as digits as its factorization.

16066213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698554.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 16066213 is about 4008.2680798569. The cubic root of 16066213 is about 252.3313280594.

The spelling of 16066213 in words is "sixteen million, sixty-six thousand, two hundred thirteen".