1329016065 has 16 divisors (see below), whose sum is σ = 2289997248. Its totient is φ = 654284736.

The previous prime is 1329016043. The next prime is 1329016069. The reversal of 1329016065 is 5606109231.

It is a happy number.

It is not a de Polignac number, because 1329016065 - 2⁵ = 1329016033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1329016069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3407539 + ... + 3407928.

It is an arithmetic number, because the mean of its divisors is an integer number (143124828).

Almost surely, 2^1329016065 is an apocalyptic number.

1329016065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1329016065 is a deficient number, since it is larger than the sum of its proper divisors (960981183).

1329016065 is a wasteful number, since it uses less digits than its factorization.

1329016065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815488.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 1329016065 is about 36455.6726038624. The cubic root of 1329016065 is about 1099.4531896580.

The spelling of 1329016065 in words is "one billion, three hundred twenty-nine million, sixteen thousand, sixty-five".