7716322165 has 4 divisors (see below), whose sum is σ = 9259586604. Its totient is φ = 6173057728.

The previous prime is 7716322157. The next prime is 7716322183. The reversal of 7716322165 is 5612236177.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5612236177 = 151 ⋅37167127.

It can be written as a sum of positive squares in 2 ways, for example, as 4737018276 + 2979303889 = 68826^2 + 54583^2 .

It is a cyclic number.

It is not a de Polignac number, because 7716322165 - 2³ = 7716322157 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771632212 + ... + 771632221.

It is an arithmetic number, because the mean of its divisors is an integer number (2314896651).

Almost surely, 2^7716322165 is an apocalyptic number.

It is an amenable number.

7716322165 is a deficient number, since it is larger than the sum of its proper divisors (1543264439).

7716322165 is a wasteful number, since it uses less digits than its factorization.

7716322165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543264438.

The product of its digits is 105840, while the sum is 40.

The square root of 7716322165 is about 87842.5988060463. The cubic root of 7716322165 is about 1976.0751217329.

The spelling of 7716322165 in words is "seven billion, seven hundred sixteen million, three hundred twenty-two thousand, one hundred sixty-five".