67660545707328 has 224 divisors, whose sum is σ = 204782535417600. Its totient is φ = 19313647681536.

The previous prime is 67660545707317. The next prime is 67660545707387. The reversal of 67660545707328 is 82370754506676.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

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, 10299973228 + ... + 10299979796.

It is an arithmetic number, because the mean of its divisors is an integer number (914207747400).

Almost surely, 2^{67660545707328} 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 67660545707328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102391267708800).

67660545707328 is an abundant number, since it is smaller than the sum of its proper divisors (137121989710272).

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

67660545707328 is a wasteful number, since it uses less digits than its factorization.

67660545707328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12537 (or 12527 counting only the distinct ones).

The product of its (nonzero) digits is 355622400, while the sum is 66.

The spelling of 67660545707328 in words is "sixty-seven trillion, six hundred sixty billion, five hundred forty-five million, seven hundred seven thousand, three hundred twenty-eight".