7112661065 has 4 divisors (see below), whose sum is σ = 8535193284. Its totient is φ = 5690128848.

The previous prime is 7112661053. The next prime is 7112661067. The reversal of 7112661065 is 5601662117.

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 3676239424 + 3436421641 = 60632^2 + 58621^2 .

It is a cyclic number.

It is not a de Polignac number, because 7112661065 - 2¹⁸ = 7112398921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7112661067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711266102 + ... + 711266111.

It is an arithmetic number, because the mean of its divisors is an integer number (2133798321).

Almost surely, 2^7112661065 is an apocalyptic number.

It is an amenable number.

7112661065 is a deficient number, since it is larger than the sum of its proper divisors (1422532219).

7112661065 is a wasteful number, since it uses less digits than its factorization.

7112661065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422532218.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 7112661065 is about 84336.5938664824. The cubic root of 7112661065 is about 1923.1391306976.

The spelling of 7112661065 in words is "seven billion, one hundred twelve million, six hundred sixty-one thousand, sixty-five".