11670071065 has 16 divisors (see below), whose sum is σ = 14053332240. Its totient is φ = 9303275520.

The previous prime is 11670070981. The next prime is 11670071069. The reversal of 11670071065 is 56017007611.

It can be written as a sum of positive squares in 8 ways, for example, as 115541001 + 11554530064 = 10749^2 + 107492^2 .

It is not a de Polignac number, because 11670071065 - 2¹⁷ = 11669939993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11670071065.

It is not an unprimeable number, because it can be changed into a prime (11670071069) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2556385 + ... + 2560945.

It is an arithmetic number, because the mean of its divisors is an integer number (878333265).

Almost surely, 2^11670071065 is an apocalyptic number.

It is an amenable number.

11670071065 is a deficient number, since it is larger than the sum of its proper divisors (2383261175).

11670071065 is a wasteful number, since it uses less digits than its factorization.

11670071065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6252.

The product of its (nonzero) digits is 8820, while the sum is 34.

Adding to 11670071065 its reverse (56017007611), we get a palindrome (67687078676).

The spelling of 11670071065 in words is "eleven billion, six hundred seventy million, seventy-one thousand, sixty-five".