194110770816 has 128 divisors (see below), whose sum is σ = 577967414400. Its totient is φ = 64130863104.

The previous prime is 194110770811. The next prime is 194110770817. The reversal of 194110770816 is 618077011491.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (194110770811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142005 + ... + 639051.

It is an arithmetic number, because the mean of its divisors is an integer number (4515370425).

Almost surely, 2^194110770816 is an apocalyptic number.

194110770816 is a gapful number since it is divisible by the number (16) 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 194110770816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288983707200).

194110770816 is an abundant number, since it is smaller than the sum of its proper divisors (383856643584).

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

194110770816 is a wasteful number, since it uses less digits than its factorization.

194110770816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497183 (or 497165 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 45.

The spelling of 194110770816 in words is "one hundred ninety-four billion, one hundred ten million, seven hundred seventy thousand, eight hundred sixteen".