7364561665 has 4 divisors (see below), whose sum is σ = 8837474004. Its totient is φ = 5891649328.

The previous prime is 7364561651. The next prime is 7364561669. The reversal of 7364561665 is 5661654637.

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 1259327169 + 6105234496 = 35487^2 + 78136^2 .

It is a cyclic number.

It is not a de Polignac number, because 7364561665 - 2¹¹ = 7364559617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7364561669) 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, 736456162 + ... + 736456171.

It is an arithmetic number, because the mean of its divisors is an integer number (2209368501).

Almost surely, 2^7364561665 is an apocalyptic number.

It is an amenable number.

7364561665 is a deficient number, since it is larger than the sum of its proper divisors (1472912339).

7364561665 is a wasteful number, since it uses less digits than its factorization.

7364561665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472912338.

The product of its digits is 2721600, while the sum is 49.

The square root of 7364561665 is about 85817.0243308401. The cubic root of 7364561665 is about 1945.5794375944.

The spelling of 7364561665 in words is "seven billion, three hundred sixty-four million, five hundred sixty-one thousand, six hundred sixty-five".