816668006833 has 48 divisors (see below), whose sum is σ = 974843541504. Its totient is φ = 681848163360.

The previous prime is 816668006809. The next prime is 816668006879. The reversal of 816668006833 is 338600866618.

It is not a de Polignac number, because 816668006833 - 2⁹ = 816668006321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (816668007833) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 550685710 + ... + 550687192.

It is an arithmetic number, because the mean of its divisors is an integer number (20309240448).

Almost surely, 2^816668006833 is an apocalyptic number.

It is an amenable number.

816668006833 is a deficient number, since it is larger than the sum of its proper divisors (158175534671).

816668006833 is a wasteful number, since it uses less digits than its factorization.

816668006833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522 (or 2515 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 816668006833 in words is "eight hundred sixteen billion, six hundred sixty-eight million, six thousand, eight hundred thirty-three".