9396324981665 has 4 divisors (see below), whose sum is σ = 11275589978004. Its totient is φ = 7517059985328.

The previous prime is 9396324981661. The next prime is 9396324981707. The reversal of 9396324981665 is 5661894236939.

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 4200241203601 + 5196083778064 = 2049449^2 + 2279492^2 .

It is a cyclic number.

It is not a de Polignac number, because 9396324981665 - 2² = 9396324981661 is a prime.

It is a super-2 number, since 2×9396324981665² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9396324981661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939632498162 + ... + 939632498171.

It is an arithmetic number, because the mean of its divisors is an integer number (2818897494501).

Almost surely, 2^{9396324981665} is an apocalyptic number.

It is an amenable number.

9396324981665 is a deficient number, since it is larger than the sum of its proper divisors (1879264996339).

9396324981665 is a wasteful number, since it uses less digits than its factorization.

9396324981665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879264996338.

The product of its digits is 453496320, while the sum is 71.

The spelling of 9396324981665 in words is "nine trillion, three hundred ninety-six billion, three hundred twenty-four million, nine hundred eighty-one thousand, six hundred sixty-five".