65555775048 has 128 divisors (see below), whose sum is σ = 171786873600. Its totient is φ = 20824667136.

The previous prime is 65555775041. The next prime is 65555775049. The reversal of 65555775048 is 84057755556.

It is not an unprimeable number, because it can be changed into a prime (65555775041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50310765 + ... + 50312067.

It is an arithmetic number, because the mean of its divisors is an integer number (1342084950).

Almost surely, 2^65555775048 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 65555775048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85893436800).

65555775048 is an abundant number, since it is smaller than the sum of its proper divisors (106231098552).

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

65555775048 is a wasteful number, since it uses less digits than its factorization.

65555775048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471 (or 2467 counting only the distinct ones).

The product of its (nonzero) digits is 29400000, while the sum is 57.

The spelling of 65555775048 in words is "sixty-five billion, five hundred fifty-five million, seven hundred seventy-five thousand, forty-eight".