816164 has 12 divisors (see below), whose sum is σ = 1503600. Its totient is φ = 386568.

The previous prime is 816163. The next prime is 816169. The reversal of 816164 is 461618.

It is a super-2 number, since 2×816164² = 1332247349792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (816161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5294 + ... + 5445.

It is an arithmetic number, because the mean of its divisors is an integer number (125300).

2⁸¹⁶¹⁶⁴ is an apocalyptic number.

It is an amenable number.

816164 is a deficient number, since it is larger than the sum of its proper divisors (687436).

816164 is a wasteful number, since it uses less digits than its factorization.

816164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10762 (or 10760 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 816164 is about 903.4179542161. The cubic root of 816164 is about 93.4528344575.

The spelling of 816164 in words is "eight hundred sixteen thousand, one hundred sixty-four".