1065166265 has 16 divisors (see below), whose sum is σ = 1312019856. Its totient is φ = 829670400.

The previous prime is 1065166253. The next prime is 1065166303. The reversal of 1065166265 is 5626615601.

It can be written as a sum of positive squares in 8 ways, for example, as 418939024 + 646227241 = 20468^2 + 25421^2 .

It is not a de Polignac number, because 1065166265 - 2¹² = 1065162169 is a prime.

It is a super-2 number, since 2×1065166265² = 2269158344188100450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101819 + ... + 111791.

It is an arithmetic number, because the mean of its divisors is an integer number (82001241).

Almost surely, 2^1065166265 is an apocalyptic number.

It is an amenable number.

1065166265 is a deficient number, since it is larger than the sum of its proper divisors (246853591).

1065166265 is an equidigital number, since it uses as much as digits as its factorization.

1065166265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10540.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 1065166265 is about 32636.8850382508. The cubic root of 1065166265 is about 1021.2666134118.

The spelling of 1065166265 in words is "one billion, sixty-five million, one hundred sixty-six thousand, two hundred sixty-five".