65663447383072 has 192 divisors, whose sum is σ = 170670447360000. Its totient is φ = 24076052582400.

The previous prime is 65663447383031. The next prime is 65663447383073. The reversal of 65663447383072 is 27038374436656.

It is a super-2 number, since 2×65663447383072² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65663447382995 and 65663447383013.

It is not an unprimeable number, because it can be changed into a prime (65663447383073) 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, 495510679 + ... + 495643177.

It is an arithmetic number, because the mean of its divisors is an integer number (888908580000).

Almost surely, 2^{65663447383072} 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 65663447383072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85335223680000).

65663447383072 is an abundant number, since it is smaller than the sum of its proper divisors (105006999976928).

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

65663447383072 is a wasteful number, since it uses less digits than its factorization.

65663447383072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144375 (or 144367 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 64.

The spelling of 65663447383072 in words is "sixty-five trillion, six hundred sixty-three billion, four hundred forty-seven million, three hundred eighty-three thousand, seventy-two".