816476563227 has 16 divisors (see below), whose sum is σ = 1241339934240. Its totient is φ = 472891402752.

The previous prime is 816476563223. The next prime is 816476563267. The reversal of 816476563227 is 722365674618.

It is a happy number.

It is not a de Polignac number, because 816476563227 - 2² = 816476563223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (816476563223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615743352 + ... + 615744677.

It is an arithmetic number, because the mean of its divisors is an integer number (77583745890).

Almost surely, 2^816476563227 is an apocalyptic number.

816476563227 is a deficient number, since it is larger than the sum of its proper divisors (424863371013).

816476563227 is a wasteful number, since it uses less digits than its factorization.

816476563227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231488062.

The product of its digits is 20321280, while the sum is 57.

The spelling of 816476563227 in words is "eight hundred sixteen billion, four hundred seventy-six million, five hundred sixty-three thousand, two hundred twenty-seven".