1016815065 has 32 divisors (see below), whose sum is σ = 1860523776. Its totient is φ = 464528640.

The previous prime is 1016815043. The next prime is 1016815091. The reversal of 1016815065 is 5605186101.

It is not a de Polignac number, because 1016815065 - 2⁸ = 1016814809 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286039 + ... + 289571.

It is an arithmetic number, because the mean of its divisors is an integer number (58141368).

Almost surely, 2^1016815065 is an apocalyptic number.

1016815065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1016815065 is a deficient number, since it is larger than the sum of its proper divisors (843708711).

1016815065 is a wasteful number, since it uses less digits than its factorization.

1016815065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6289.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 1016815065 is about 31887.5377694798. The cubic root of 1016815065 is about 1005.5738956303.

The spelling of 1016815065 in words is "one billion, sixteen million, eight hundred fifteen thousand, sixty-five".