16065730 has 24 divisors (see below), whose sum is σ = 30240252. Its totient is φ = 6144864.

The previous prime is 16065713. The next prime is 16065737. The reversal of 16065730 is 3756061.

It can be written as a sum of positive squares in 2 ways, for example, as 15832441 + 233289 = 3979^2 + 483^2 .

It is not an unprimeable number, because it can be changed into a prime (16065737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3772 + ... + 6808.

Almost surely, 2^16065730 is an apocalyptic number.

16065730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16065730 is a deficient number, since it is larger than the sum of its proper divisors (14174522).

16065730 is a wasteful number, since it uses less digits than its factorization.

16065730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090 (or 3067 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 16065730 is about 4008.2078289430. The cubic root of 16065730 is about 252.3287994143.

The spelling of 16065730 in words is "sixteen million, sixty-five thousand, seven hundred thirty".