165622226 has 16 divisors (see below), whose sum is σ = 309735360. Its totient is φ = 64528080.

The previous prime is 165622217. The next prime is 165622231. The reversal of 165622226 is 622226561.

It is a junction number, because it is equal to n+sod(n) for n = 165622192 and 165622201.

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, 537581 + ... + 537888.

It is an arithmetic number, because the mean of its divisors is an integer number (19358460).

Almost surely, 2^165622226 is an apocalyptic number.

165622226 is a deficient number, since it is larger than the sum of its proper divisors (144113134).

165622226 is a wasteful number, since it uses less digits than its factorization.

165622226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075489.

The product of its digits is 17280, while the sum is 32.

The square root of 165622226 is about 12869.4299019032. The cubic root of 165622226 is about 549.1692427695.

Adding to 165622226 its reverse (622226561), we get a palindrome (787848787).

The spelling of 165622226 in words is "one hundred sixty-five million, six hundred twenty-two thousand, two hundred twenty-six".