7065811601 has 4 divisors (see below), whose sum is σ = 7066094772. Its totient is φ = 7065528432.

The previous prime is 7065811591. The next prime is 7065811657. The reversal of 7065811601 is 1061185607.

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 1899652225 + 5166159376 = 43585^2 + 71876^2 .

It is a cyclic number.

It is not a de Polignac number, because 7065811601 - 2⁶ = 7065811537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7065811681) 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, 100106 + ... + 155411.

It is an arithmetic number, because the mean of its divisors is an integer number (1766523693).

Almost surely, 2^7065811601 is an apocalyptic number.

It is an amenable number.

7065811601 is a deficient number, since it is larger than the sum of its proper divisors (283171).

7065811601 is a wasteful number, since it uses less digits than its factorization.

7065811601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283170.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 7065811601 is about 84058.3820983964. The cubic root of 7065811601 is about 1918.9074007316.

The spelling of 7065811601 in words is "seven billion, sixty-five million, eight hundred eleven thousand, six hundred one".