22770165 has 32 divisors (see below), whose sum is σ = 40435200. Its totient is φ = 10848320.

The previous prime is 22770131. The next prime is 22770169. The reversal of 22770165 is 56107722.

It is not a de Polignac number, because 22770165 - 2⁶ = 22770101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22770169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8566 + ... + 10904.

It is an arithmetic number, because the mean of its divisors is an integer number (1263600).

Almost surely, 2^22770165 is an apocalyptic number.

It is an amenable number.

22770165 is a deficient number, since it is larger than the sum of its proper divisors (17665035).

22770165 is a wasteful number, since it uses less digits than its factorization.

22770165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 22770165 is about 4771.8094052466. The cubic root of 22770165 is about 283.4362494257.

Adding to 22770165 its reverse (56107722), we get a palindrome (78877887).

The spelling of 22770165 in words is "twenty-two million, seven hundred seventy thousand, one hundred sixty-five".