722320165 has 16 divisors (see below), whose sum is σ = 1014773760. Its totient is φ = 483223680.

The previous prime is 722320163. The next prime is 722320187. The reversal of 722320165 is 561023227.

It is not a de Polignac number, because 722320165 - 2¹ = 722320163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722320163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250245 + ... + 253114.

It is an arithmetic number, because the mean of its divisors is an integer number (63423360).

Almost surely, 2^722320165 is an apocalyptic number.

It is an amenable number.

722320165 is a deficient number, since it is larger than the sum of its proper divisors (292453595).

722320165 is a wasteful number, since it uses less digits than its factorization.

722320165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503412.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 722320165 is about 26876.0146785196. The cubic root of 722320165 is about 897.2426576272.

The spelling of 722320165 in words is "seven hundred twenty-two million, three hundred twenty thousand, one hundred sixty-five".