65943413712 has 320 divisors, whose sum is σ = 228148254720. Its totient is φ = 17989171200.

The previous prime is 65943413617. The next prime is 65943413743. The reversal of 65943413712 is 21731434956.

65943413712 is a `hidden beast` number, since 6 + 594 + 3 + 41 + 3 + 7 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1840287 + ... + 1875777.

It is an arithmetic number, because the mean of its divisors is an integer number (712963296).

Almost surely, 2^65943413712 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 65943413712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114074127360).

65943413712 is an abundant number, since it is smaller than the sum of its proper divisors (162204841008).

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

65943413712 is a wasteful number, since it uses less digits than its factorization.

65943413712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35559 (or 35547 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 65943413712 in words is "sixty-five billion, nine hundred forty-three million, four hundred thirteen thousand, seven hundred twelve".