8199391642960 has 160 divisors (see below), whose sum is σ = 22053628477440. Its totient is φ = 2776823376384.

The previous prime is 8199391642919. The next prime is 8199391642961. The reversal of 8199391642960 is 692461939918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8199391642961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305034801 + ... + 305061679.

It is an arithmetic number, because the mean of its divisors is an integer number (137835177984).

Almost surely, 2^{8199391642960} is an apocalyptic number.

8199391642960 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 8199391642960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11026814238720).

8199391642960 is an abundant number, since it is smaller than the sum of its proper divisors (13854236834480).

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

8199391642960 is a wasteful number, since it uses less digits than its factorization.

8199391642960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33545 (or 33539 counting only the distinct ones).

The product of its (nonzero) digits is 45349632, while the sum is 67.

The spelling of 8199391642960 in words is "eight trillion, one hundred ninety-nine billion, three hundred ninety-one million, six hundred forty-two thousand, nine hundred sixty".