816283506218 has 8 divisors (see below), whose sum is σ = 1224478892160. Its totient is φ = 408123875500.

The previous prime is 816283506211. The next prime is 816283506271. The reversal of 816283506218 is 812605382618.

816283506218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (816283506211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8881658 + ... + 8973093.

It is an arithmetic number, because the mean of its divisors is an integer number (153059861520).

Almost surely, 2^816283506218 is an apocalyptic number.

816283506218 is a deficient number, since it is larger than the sum of its proper divisors (408195385942).

816283506218 is a wasteful number, since it uses less digits than its factorization.

816283506218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17877612.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 816283506218 in words is "eight hundred sixteen billion, two hundred eighty-three million, five hundred six thousand, two hundred eighteen".