68555263158 has 48 divisors (see below), whose sum is σ = 151731268416. Its totient is φ = 22365385200.

The previous prime is 68555263151. The next prime is 68555263159. The reversal of 68555263158 is 85136255586.

68555263158 is a `hidden beast` number, since 6 + 8 + 5 + 552 + 6 + 31 + 58 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68555263151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54568 + ... + 374283.

It is an arithmetic number, because the mean of its divisors is an integer number (3161068092).

Almost surely, 2^68555263158 is an apocalyptic number.

68555263158 is an abundant number, since it is smaller than the sum of its proper divisors (83176005258).

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

68555263158 is a wasteful number, since it uses less digits than its factorization.

68555263158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429049 (or 429046 counting only the distinct ones).

The product of its digits is 8640000, while the sum is 54.

The spelling of 68555263158 in words is "sixty-eight billion, five hundred fifty-five million, two hundred sixty-three thousand, one hundred fifty-eight".