816228705107 has 4 divisors (see below), whose sum is σ = 816235056960. Its totient is φ = 816222353256.

The previous prime is 816228705067. The next prime is 816228705109. The reversal of 816228705107 is 701507822618.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 816228705107 - 2³⁶ = 747509228371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816228705109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2979107 + ... + 3241532.

It is an arithmetic number, because the mean of its divisors is an integer number (204058764240).

Almost surely, 2^816228705107 is an apocalyptic number.

816228705107 is a deficient number, since it is larger than the sum of its proper divisors (6351853).

816228705107 is a wasteful number, since it uses less digits than its factorization.

816228705107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351852.

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 816228705107 in words is "eight hundred sixteen billion, two hundred twenty-eight million, seven hundred five thousand, one hundred seven".