720227165 has 16 divisors (see below), whose sum is σ = 996976512. Its totient is φ = 489251904.

The previous prime is 720227161. The next prime is 720227177. The reversal of 720227165 is 561722027.

It is a cyclic number.

It is not a de Polignac number, because 720227165 - 2² = 720227161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720227161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92414 + ... + 99903.

It is an arithmetic number, because the mean of its divisors is an integer number (62311032).

Almost surely, 2^720227165 is an apocalyptic number.

It is an amenable number.

720227165 is a deficient number, since it is larger than the sum of its proper divisors (276749347).

720227165 is a wasteful number, since it uses less digits than its factorization.

720227165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192436.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 720227165 is about 26837.0483660182. The cubic root of 720227165 is about 896.3752003544.

The spelling of 720227165 in words is "seven hundred twenty million, two hundred twenty-seven thousand, one hundred sixty-five".