65506071707000 has 128 divisors (see below), whose sum is σ = 153704952311040. Its totient is φ = 26130605212800.

The previous prime is 65506071706973. The next prime is 65506071707009. The reversal of 65506071707000 is 70717060556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65506071707009) 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, 537460067 + ... + 537581933.

It is an arithmetic number, because the mean of its divisors is an integer number (1200819939930).

Almost surely, 2^{65506071707000} 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 65506071707000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76852476155520).

65506071707000 is an abundant number, since it is smaller than the sum of its proper divisors (88198880604040).

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

65506071707000 is a wasteful number, since it uses less digits than its factorization.

65506071707000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123358 (or 123344 counting only the distinct ones).

The product of its (nonzero) digits is 308700, while the sum is 44.

Adding to 65506071707000 its reverse (70717060556), we get a palindrome (65576788767556).

The spelling of 65506071707000 in words is "sixty-five trillion, five hundred six billion, seventy-one million, seven hundred seven thousand".