65543055138 has 48 divisors (see below), whose sum is σ = 155024827776. Its totient is φ = 19848085920.

The previous prime is 65543055133. The next prime is 65543055163. The reversal of 65543055138 is 83155034556.

65543055138 is a `hidden beast` number, since 6 + 55 + 43 + 0 + 551 + 3 + 8 = 666.

65543055138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65543055093 and 65543055102.

It is not an unprimeable number, because it can be changed into a prime (65543055133) 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, 183120 + ... + 405732.

It is an arithmetic number, because the mean of its divisors is an integer number (3229683912).

Almost surely, 2^65543055138 is an apocalyptic number.

65543055138 is an abundant number, since it is smaller than the sum of its proper divisors (89481772638).

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

65543055138 is a wasteful number, since it uses less digits than its factorization.

65543055138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224119 (or 224116 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 65543055138 in words is "sixty-five billion, five hundred forty-three million, fifty-five thousand, one hundred thirty-eight".