2065116145 has 4 divisors (see below), whose sum is σ = 2478139380. Its totient is φ = 1652092912.

The previous prime is 2065116133. The next prime is 2065116173. The reversal of 2065116145 is 5416115602.

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 1134072976 + 931043169 = 33676^2 + 30513^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065116145 - 2¹¹ = 2065114097 is a prime.

It is a super-2 number, since 2×2065116145² = 8529409384679322050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3 ways as a sum of consecutive naturals, for example, 206511610 + ... + 206511619.

It is an arithmetic number, because the mean of its divisors is an integer number (619534845).

Almost surely, 2^2065116145 is an apocalyptic number.

It is an amenable number.

2065116145 is a deficient number, since it is larger than the sum of its proper divisors (413023235).

2065116145 is an equidigital number, since it uses as much as digits as its factorization.

2065116145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413023234.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2065116145 is about 45443.5489921287. The cubic root of 2065116145 is about 1273.4488161224.

The spelling of 2065116145 in words is "two billion, sixty-five million, one hundred sixteen thousand, one hundred forty-five".