2194320855168 has 768 divisors, whose sum is σ = 7173441475200. Its totient is φ = 667627204608.

The previous prime is 2194320855151. The next prime is 2194320855187. The reversal of 2194320855168 is 8615580234912.

2194320855168 is a `hidden beast` number, since 2 + 1 + 9 + 4 + 3 + 20 + 8 + 551 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11138684446 + ... + 11138684642.

Almost surely, 2^{2194320855168} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2194320855168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3586720737600).

2194320855168 is an abundant number, since it is smaller than the sum of its proper divisors (4979120620032).

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

2194320855168 is an equidigital number, since it uses as much as digits as its factorization.

2194320855168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 2194320855168 in words is "two trillion, one hundred ninety-four billion, three hundred twenty million, eight hundred fifty-five thousand, one hundred sixty-eight".