68456807055 has 144 divisors (see below), whose sum is σ = 156473946720. Its totient is φ = 27366667776.

The previous prime is 68456807047. The next prime is 68456807071. The reversal of 68456807055 is 55070865486.

68456807055 is a `hidden beast` number, since 6 + 8 + 4 + 568 + 0 + 70 + 5 + 5 = 666.

It is not a de Polignac number, because 68456807055 - 2³ = 68456807047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68456806992 and 68456807010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 481789 + ... + 607481.

It is an arithmetic number, because the mean of its divisors is an integer number (1086624630).

Almost surely, 2^68456807055 is an apocalyptic number.

68456807055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68456807055 is an abundant number, since it is smaller than the sum of its proper divisors (88017139665).

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

68456807055 is a wasteful number, since it uses less digits than its factorization.

68456807055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125750 (or 125740 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 68456807055 in words is "sixty-eight billion, four hundred fifty-six million, eight hundred seven thousand, fifty-five".