1016565005 has 4 divisors (see below), whose sum is σ = 1219878012. Its totient is φ = 813252000.

The previous prime is 1016564987. The next prime is 1016565013. The reversal of 1016565005 is 5005656101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 750157321 + 266407684 = 27389^2 + 16322^2 .

It is not a de Polignac number, because 1016565005 - 2¹⁰ = 1016563981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101656496 + ... + 101656505.

It is an arithmetic number, because the mean of its divisors is an integer number (304969503).

Almost surely, 2^1016565005 is an apocalyptic number.

It is an amenable number.

1016565005 is a deficient number, since it is larger than the sum of its proper divisors (203313007).

1016565005 is an equidigital number, since it uses as much as digits as its factorization.

1016565005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203313006.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 1016565005 is about 31883.6165608608. The cubic root of 1016565005 is about 1005.4914570327.

The spelling of 1016565005 in words is "one billion, sixteen million, five hundred sixty-five thousand, five".