1016600065 has 12 divisors (see below), whose sum is σ = 1320979644. Its totient is φ = 750719424.

The previous prime is 1016600063. The next prime is 1016600071. The reversal of 1016600065 is 5600066101.

It can be written as a sum of positive squares in 6 ways, for example, as 20061441 + 996538624 = 4479^2 + 31568^2 .

It is not a de Polignac number, because 1016600065 - 2¹ = 1016600063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1016600063) 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, 600694 + ... + 602383.

It is an arithmetic number, because the mean of its divisors is an integer number (110081637).

Almost surely, 2^1016600065 is an apocalyptic number.

It is an amenable number.

1016600065 is a deficient number, since it is larger than the sum of its proper divisors (304379579).

1016600065 is a wasteful number, since it uses less digits than its factorization.

1016600065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203108 (or 1203095 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1016600065 is about 31884.1663682775. The cubic root of 1016600065 is about 1005.5030162624.

Adding to 1016600065 its reverse (5600066101), we get a palindrome (6616666166).

The spelling of 1016600065 in words is "one billion, sixteen million, six hundred thousand, sixty-five".