65163075959040 has 288 divisors, whose sum is σ = 214622864870400. Its totient is φ = 16841697976320.

The previous prime is 65163075959027. The next prime is 65163075959077. The reversal of 65163075959040 is 4095957036156.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14060271 + ... + 18111249.

It is an arithmetic number, because the mean of its divisors is an integer number (745218280800).

Almost surely, 2^{65163075959040} is an apocalyptic number.

65163075959040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65163075959040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107311432435200).

65163075959040 is an abundant number, since it is smaller than the sum of its proper divisors (149459788911360).

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

65163075959040 is a wasteful number, since it uses less digits than its factorization.

65163075959040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051133 (or 4051119 counting only the distinct ones).

The product of its (nonzero) digits is 30618000, while the sum is 60.

The spelling of 65163075959040 in words is "sixty-five trillion, one hundred sixty-three billion, seventy-five million, nine hundred fifty-nine thousand, forty".