816195466 has 32 divisors (see below), whose sum is σ = 1346429952. Its totient is φ = 369396480.

The previous prime is 816195463. The next prime is 816195473. The reversal of 816195466 is 664591618.

It is not an unprimeable number, because it can be changed into a prime (816195463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173700 + ... + 178336.

It is an arithmetic number, because the mean of its divisors is an integer number (42075936).

Almost surely, 2^816195466 is an apocalyptic number.

816195466 is a deficient number, since it is larger than the sum of its proper divisors (530234486).

816195466 is a wasteful number, since it uses less digits than its factorization.

816195466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854.

The product of its digits is 311040, while the sum is 46.

The square root of 816195466 is about 28569.1348486439. The cubic root of 816195466 is about 934.5403542081.

The spelling of 816195466 in words is "eight hundred sixteen million, one hundred ninety-five thousand, four hundred sixty-six".