7326722665 has 16 divisors (see below), whose sum is σ = 8874835200. Its totient is φ = 5806386432.

The previous prime is 7326722659. The next prime is 7326722687. The reversal of 7326722665 is 5662276237.

It is a cyclic number.

It is not a de Polignac number, because 7326722665 - 2⁵ = 7326722633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310401 + ... + 333169.

It is an arithmetic number, because the mean of its divisors is an integer number (554677200).

Almost surely, 2^7326722665 is an apocalyptic number.

It is an amenable number.

7326722665 is a deficient number, since it is larger than the sum of its proper divisors (1548112535).

7326722665 is a wasteful number, since it uses less digits than its factorization.

7326722665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23376.

The product of its digits is 1270080, while the sum is 46.

The square root of 7326722665 is about 85596.2771678769. The cubic root of 7326722665 is about 1942.2415957843.

The spelling of 7326722665 in words is "seven billion, three hundred twenty-six million, seven hundred twenty-two thousand, six hundred sixty-five".