16066445 has 8 divisors (see below), whose sum is σ = 20413944. Its totient is φ = 12097024.

The previous prime is 16066439. The next prime is 16066459. The reversal of 16066445 is 54466061.

It can be written as a sum of positive squares in 4 ways, for example, as 5004169 + 11062276 = 2237^2 + 3326^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16066445 - 2⁴ = 16066429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94424 + ... + 94593.

It is an arithmetic number, because the mean of its divisors is an integer number (2551743).

Almost surely, 2^16066445 is an apocalyptic number.

It is an amenable number.

16066445 is a deficient number, since it is larger than the sum of its proper divisors (4347499).

16066445 is a wasteful number, since it uses less digits than its factorization.

16066445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189039.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 16066445 is about 4008.2970199325. The cubic root of 16066445 is about 252.3325426286.

The spelling of 16066445 in words is "sixteen million, sixty-six thousand, four hundred forty-five".