194143265680 has 160 divisors (see below), whose sum is σ = 558839232000. Its totient is φ = 61442754048.

The previous prime is 194143265611. The next prime is 194143265699. The reversal of 194143265680 is 86562341491.

194143265680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1151421 + ... + 1309219.

It is an arithmetic number, because the mean of its divisors is an integer number (3492745200).

Almost surely, 2^194143265680 is an apocalyptic number.

194143265680 is a gapful number since it is divisible by the number (10) 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 194143265680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279419616000).

194143265680 is an abundant number, since it is smaller than the sum of its proper divisors (364695966320).

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

194143265680 is a wasteful number, since it uses less digits than its factorization.

194143265680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157858 (or 157826 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 194143265680 in words is "one hundred ninety-four billion, one hundred forty-three million, two hundred sixty-five thousand, six hundred eighty".