16190065 has 8 divisors (see below), whose sum is σ = 19482408. Its totient is φ = 12915840.

The previous prime is 16190011. The next prime is 16190077. The reversal of 16190065 is 56009161.

It can be written as a sum of positive squares in 4 ways, for example, as 3996001 + 12194064 = 1999^2 + 3492^2 .

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

It is not a de Polignac number, because 16190065 - 2⁹ = 16189553 is a prime.

It is a Duffinian 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, 2476 + ... + 6205.

It is an arithmetic number, because the mean of its divisors is an integer number (2435301).

Almost surely, 2^16190065 is an apocalyptic number.

It is an amenable number.

16190065 is a deficient number, since it is larger than the sum of its proper divisors (3292343).

16190065 is an equidigital number, since it uses as much as digits as its factorization.

16190065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9059.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 16190065 is about 4023.6879849213. The cubic root of 16190065 is about 252.9780636826.

The spelling of 16190065 in words is "sixteen million, one hundred ninety thousand, sixty-five".