65755820088 has 240 divisors, whose sum is σ = 221637853800. Its totient is φ = 18139282560.

The previous prime is 65755820069. The next prime is 65755820093. The reversal of 65755820088 is 88002855756.

It is a happy number.

65755820088 is a `hidden beast` number, since 6 + 5 + 7 + 558 + 2 + 0 + 0 + 88 = 666.

65755820088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 885103 + ... + 956513.

Almost surely, 2^65755820088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65755820088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110818926900).

65755820088 is an abundant number, since it is smaller than the sum of its proper divisors (155882033712).

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

65755820088 is a wasteful number, since it uses less digits than its factorization.

65755820088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71472 (or 71452 counting only the distinct ones).

The product of its (nonzero) digits is 5376000, while the sum is 54.

The spelling of 65755820088 in words is "sixty-five billion, seven hundred fifty-five million, eight hundred twenty thousand, eighty-eight".