816798598018 has 32 divisors (see below), whose sum is σ = 1397323557504. Its totient is φ = 354741057792.

The previous prime is 816798597973. The next prime is 816798598051. The reversal of 816798598018 is 810895897618.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2190571 + ... + 2536177.

It is an arithmetic number, because the mean of its divisors is an integer number (43666361172).

Almost surely, 2^816798598018 is an apocalyptic number.

816798598018 is a deficient number, since it is larger than the sum of its proper divisors (580524959486).

816798598018 is a wasteful number, since it uses less digits than its factorization.

816798598018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350986.

The product of its (nonzero) digits is 69672960, while the sum is 70.

The spelling of 816798598018 in words is "eight hundred sixteen billion, seven hundred ninety-eight million, five hundred ninety-eight thousand, eighteen".