7315330661 has 2 divisors, whose sum is σ = 7315330662. Its totient is φ = 7315330660.

The previous prime is 7315330609. The next prime is 7315330669. The reversal of 7315330661 is 1660335137.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6192745636 + 1122585025 = 78694^2 + 33505^2 .

It is an emirp because it is prime and its reverse (1660335137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7315330661 - 2¹⁴ = 7315314277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7315330669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3657665330 + 3657665331.

It is an arithmetic number, because the mean of its divisors is an integer number (3657665331).

Almost surely, 2^7315330661 is an apocalyptic number.

It is an amenable number.

7315330661 is a deficient number, since it is larger than the sum of its proper divisors (1).

7315330661 is an equidigital number, since it uses as much as digits as its factorization.

7315330661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 7315330661 is about 85529.7063072240. The cubic root of 7315330661 is about 1941.2344378068.

Adding to 7315330661 its reverse (1660335137), we get a palindrome (8975665798).

The spelling of 7315330661 in words is "seven billion, three hundred fifteen million, three hundred thirty thousand, six hundred sixty-one".