65548454440000 has 315 divisors, whose sum is σ = 189108521876307. Its totient is φ = 22469869632000.

The previous prime is 65548454439983. The next prime is 65548454440037. The reversal of 65548454440000 is 4445484556.

The square root of 65548454440000 is 8096200.

It is a perfect power (a square), and thus also a powerful number.

65548454440000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5138998828096 + 60409455611904 = 2266936^2 + 7772352^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 11334677109 + ... + 11334682891.

Almost surely, 2^{65548454440000} is an apocalyptic number.

65548454440000 is the 8096200-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65548454440000

65548454440000 is an abundant number, since it is smaller than the sum of its proper divisors (123560067436307).

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

65548454440000 is an frugal number, since it uses more digits than its factorization.

65548454440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11612 (or 5797 counting only the distinct ones).

The product of its (nonzero) digits is 6144000, while the sum is 49.

65548454440000 divided by its sum of digits (49) gives a square (1337723560000 = 1156600²).

The spelling of 65548454440000 in words is "sixty-five trillion, five hundred forty-eight billion, four hundred fifty-four million, four hundred forty thousand".