816848113599 has 64 divisors (see below), whose sum is σ = 1430973849600. Its totient is φ = 450592886016.

The previous prime is 816848113583. The next prime is 816848113603. The reversal of 816848113599 is 995311848618.

816848113599 is a `hidden beast` number, since 8 + 1 + 68 + 481 + 1 + 3 + 5 + 99 = 666.

It is not a de Polignac number, because 816848113599 - 2⁴ = 816848113583 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816848113399) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42046002 + ... + 42065424.

It is an arithmetic number, because the mean of its divisors is an integer number (22358966400).

Almost surely, 2^816848113599 is an apocalyptic number.

816848113599 is a deficient number, since it is larger than the sum of its proper divisors (614125736001).

816848113599 is a wasteful number, since it uses less digits than its factorization.

816848113599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27141 (or 27135 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 63.

The spelling of 816848113599 in words is "eight hundred sixteen billion, eight hundred forty-eight million, one hundred thirteen thousand, five hundred ninety-nine".