65548444160080 has 320 divisors, whose sum is σ = 178891675200000. Its totient is φ = 21871841771520.

The previous prime is 65548444160071. The next prime is 65548444160081. The reversal of 65548444160080 is 8006144484556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65548444160081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5152768120 + ... + 5152780840.

It is an arithmetic number, because the mean of its divisors is an integer number (559036485000).

Almost surely, 2^{65548444160080} 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 65548444160080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89445837600000).

65548444160080 is an abundant number, since it is smaller than the sum of its proper divisors (113343231039920).

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

65548444160080 is a wasteful number, since it uses less digits than its factorization.

65548444160080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14182 (or 14176 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 55.

The spelling of 65548444160080 in words is "sixty-five trillion, five hundred forty-eight billion, four hundred forty-four million, one hundred sixty thousand, eighty".