181942442695680 has 88 divisors (see below), whose sum is σ = 581931531608592. Its totient is φ = 48517984714752.

The previous prime is 181942442695661. The next prime is 181942442695691. The reversal of 181942442695680 is 86596244249181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5922590197 + ... + 5922620916.

It is an arithmetic number, because the mean of its divisors is an integer number (6612858313734).

Almost surely, 2^{181942442695680} is an apocalyptic number.

181942442695680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

181942442695680 is an abundant number, since it is smaller than the sum of its proper divisors (399989088912912).

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

181942442695680 is a wasteful number, since it uses less digits than its factorization.

181942442695680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11845211141 (or 11845211123 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 69.

The spelling of 181942442695680 in words is "one hundred eighty-one trillion, nine hundred forty-two billion, four hundred forty-two million, six hundred ninety-five thousand, six hundred eighty".