22164455 has 8 divisors (see below), whose sum is σ = 26626704. Its totient is φ = 17712000.

The previous prime is 22164449. The next prime is 22164463. The reversal of 22164455 is 55446122.

22164455 = 845² + 846² + ... + 874².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22164455 - 2⁸ = 22164199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4160 + ... + 7850.

It is an arithmetic number, because the mean of its divisors is an integer number (3328338).

Almost surely, 2^22164455 is an apocalyptic number.

22164455 is a deficient number, since it is larger than the sum of its proper divisors (4462249).

22164455 is a wasteful number, since it uses less digits than its factorization.

22164455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897.

The product of its digits is 9600, while the sum is 29.

The square root of 22164455 is about 4707.9140816289. The cubic root of 22164455 is about 280.9003965574.

The spelling of 22164455 in words is "twenty-two million, one hundred sixty-four thousand, four hundred fifty-five".