816595942059 has 12 divisors (see below), whose sum is σ = 1181571721096. Its totient is φ = 543453795072.

The previous prime is 816595942049. The next prime is 816595942111. The reversal of 816595942059 is 950249595618.

816595942059 is a `hidden beast` number, since 8 + 16 + 5 + 9 + 594 + 20 + 5 + 9 = 666.

It is not a de Polignac number, because 816595942059 - 2⁵ = 816595942027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 816595941987 and 816595942005.

It is not an unprimeable number, because it can be changed into a prime (816595942009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78619489 + ... + 78629874.

Almost surely, 2^816595942059 is an apocalyptic number.

816595942059 is a deficient number, since it is larger than the sum of its proper divisors (364975779037).

816595942059 is a wasteful number, since it uses less digits than its factorization.

816595942059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157249946 (or 157249943 counting only the distinct ones).

The product of its (nonzero) digits is 34992000, while the sum is 63.

The spelling of 816595942059 in words is "eight hundred sixteen billion, five hundred ninety-five million, nine hundred forty-two thousand, fifty-nine".