816659996 has 6 divisors (see below), whose sum is σ = 1429155000. Its totient is φ = 408329996.

The previous prime is 816659993. The next prime is 816660067. The reversal of 816659996 is 699956618.

816659996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816659993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102082496 + ... + 102082503.

It is an arithmetic number, because the mean of its divisors is an integer number (238192500).

Almost surely, 2^816659996 is an apocalyptic number.

It is an amenable number.

816659996 is a deficient number, since it is larger than the sum of its proper divisors (612495004).

816659996 is a wasteful number, since it uses less digits than its factorization.

816659996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204165003 (or 204165001 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 59.

The square root of 816659996 is about 28577.2636198780. The cubic root of 816659996 is about 934.7176155448.

The spelling of 816659996 in words is "eight hundred sixteen million, six hundred fifty-nine thousand, nine hundred ninety-six".