16065819 has 48 divisors (see below), whose sum is σ = 29352960. Its totient is φ = 8225280.

The previous prime is 16065817. The next prime is 16065823. The reversal of 16065819 is 91856061.

It is not a de Polignac number, because 16065819 - 2¹ = 16065817 is a prime.

It is a super-2 number, since 2×16065819² = 516221080281522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16065817) 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 47 ways as a sum of consecutive naturals, for example, 67102 + ... + 67340.

It is an arithmetic number, because the mean of its divisors is an integer number (611520).

Almost surely, 2^16065819 is an apocalyptic number.

16065819 is a deficient number, since it is larger than the sum of its proper divisors (13287141).

16065819 is a wasteful number, since it uses less digits than its factorization.

16065819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 16065819 is about 4008.2189311464. The cubic root of 16065819 is about 252.3292653589.

The spelling of 16065819 in words is "sixteen million, sixty-five thousand, eight hundred nineteen".