181868655032 has 16 divisors (see below), whose sum is σ = 341041374600. Its totient is φ = 90924288480.

The previous prime is 181868654983. The next prime is 181868655041. The reversal of 181868655032 is 230556868181.

It is a happy number.

181868655032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1177607 + ... + 1323062.

Almost surely, 2^181868655032 is an apocalyptic number.

It is an amenable number.

181868655032 is a deficient number, since it is larger than the sum of its proper divisors (159172719568).

181868655032 is a wasteful number, since it uses less digits than its factorization.

181868655032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509766 (or 2509762 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 53.

The spelling of 181868655032 in words is "one hundred eighty-one billion, eight hundred sixty-eight million, six hundred fifty-five thousand, thirty-two".