8199691806720 has 384 divisors, whose sum is σ = 27802303401600. Its totient is φ = 2055991197696.

The previous prime is 8199691806613. The next prime is 8199691806739. The reversal of 8199691806720 is 276081969918.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 589602007 + ... + 589615913.

It is an arithmetic number, because the mean of its divisors is an integer number (72401831775).

Almost surely, 2^{8199691806720} is an apocalyptic number.

8199691806720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8199691806720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13901151700800).

8199691806720 is an abundant number, since it is smaller than the sum of its proper divisors (19602611594880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8199691806720 is a wasteful number, since it uses less digits than its factorization.

8199691806720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15083 (or 15063 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 66.

The spelling of 8199691806720 in words is "eight trillion, one hundred ninety-nine billion, six hundred ninety-one million, eight hundred six thousand, seven hundred twenty".