816162266 has 4 divisors (see below), whose sum is σ = 1224243402. Its totient is φ = 408081132.

The previous prime is 816162239. The next prime is 816162287. The reversal of 816162266 is 662261618.

816162266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 608658241 + 207504025 = 24671^2 + 14405^2 .

It is a super-2 number, since 2×816162266² = 1332241688884509512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204040565 + ... + 204040568.

Almost surely, 2^816162266 is an apocalyptic number.

816162266 is a deficient number, since it is larger than the sum of its proper divisors (408081136).

816162266 is a wasteful number, since it uses less digits than its factorization.

816162266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408081135.

The product of its digits is 41472, while the sum is 38.

The square root of 816162266 is about 28568.5537960885. The cubic root of 816162266 is about 934.5276827498.

The spelling of 816162266 in words is "eight hundred sixteen million, one hundred sixty-two thousand, two hundred sixty-six".