16216085 has 8 divisors (see below), whose sum is σ = 19527480. Its totient is φ = 12927424.

The previous prime is 16216073. The next prime is 16216099. The reversal of 16216085 is 58061261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2010724 + 14205361 = 1418^2 + 3769^2 .

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 16216085 - 2¹⁰ = 16215061 is a prime.

It is a super-2 number, since 2×16216085² = 525922825454450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4070 + ... + 6999.

It is an arithmetic number, because the mean of its divisors is an integer number (2440935).

Almost surely, 2^16216085 is an apocalyptic number.

It is an amenable number.

16216085 is a deficient number, since it is larger than the sum of its proper divisors (3311395).

16216085 is a wasteful number, since it uses less digits than its factorization.

16216085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11367.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 16216085 is about 4026.9200389379. The cubic root of 16216085 is about 253.1135164226.

The spelling of 16216085 in words is "sixteen million, two hundred sixteen thousand, eighty-five".