181246720896 has 96 divisors (see below), whose sum is σ = 538380822720. Its totient is φ = 58466672640.

The previous prime is 181246720873. The next prime is 181246720931. The reversal of 181246720896 is 698027642181.

It is a happy number.

181246720896 is a `hidden beast` number, since 1 + 81 + 2 + 467 + 20 + 89 + 6 = 666.

181246720896 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2501905 + ... + 2573328.

It is an arithmetic number, because the mean of its divisors is an integer number (5608133570).

Almost surely, 2^181246720896 is an apocalyptic number.

181246720896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

181246720896 is an abundant number, since it is smaller than the sum of its proper divisors (357134101824).

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

181246720896 is a wasteful number, since it uses less digits than its factorization.

181246720896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075284 (or 5075269 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 181246720896 in words is "one hundred eighty-one billion, two hundred forty-six million, seven hundred twenty thousand, eight hundred ninety-six".