16722265 has 16 divisors (see below), whose sum is σ = 23931648. Its totient is φ = 10967616.

The previous prime is 16722253. The next prime is 16722269. The reversal of 16722265 is 56222761.

It is a cyclic number.

It is not a de Polignac number, because 16722265 - 2¹¹ = 16720217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16722269) 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, 9582 + ... + 11191.

It is an arithmetic number, because the mean of its divisors is an integer number (1495728).

Almost surely, 2^16722265 is an apocalyptic number.

It is an amenable number.

16722265 is a deficient number, since it is larger than the sum of its proper divisors (7209383).

16722265 is a wasteful number, since it uses less digits than its factorization.

16722265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20808.

The product of its digits is 10080, while the sum is 31.

The square root of 16722265 is about 4089.2866126013. The cubic root of 16722265 is about 255.7201990574.

The spelling of 16722265 in words is "sixteen million, seven hundred twenty-two thousand, two hundred sixty-five".