68182440055 has 4 divisors (see below), whose sum is σ = 81818928072. Its totient is φ = 54545952040.

The previous prime is 68182440031. The next prime is 68182440119. The reversal of 68182440055 is 55004428186.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68182440055 - 2⁹ = 68182439543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68182439993 and 68182440020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6818244001 + ... + 6818244010.

It is an arithmetic number, because the mean of its divisors is an integer number (20454732018).

Almost surely, 2^68182440055 is an apocalyptic number.

68182440055 is a deficient number, since it is larger than the sum of its proper divisors (13636488017).

68182440055 is a wasteful number, since it uses less digits than its factorization.

68182440055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13636488016.

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 68182440055 in words is "sixty-eight billion, one hundred eighty-two million, four hundred forty thousand, fifty-five".