67368740219664 has 320 divisors, whose sum is σ = 198794013868800. Its totient is φ = 19488483311616.

The previous prime is 67368740219653. The next prime is 67368740219741. The reversal of 67368740219664 is 46691204786376.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 819599752 + ... + 819681944.

It is an arithmetic number, because the mean of its divisors is an integer number (621231293340).

Almost surely, 2^{67368740219664} 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 67368740219664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99397006934400).

67368740219664 is an abundant number, since it is smaller than the sum of its proper divisors (131425273649136).

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

67368740219664 is a wasteful number, since it uses less digits than its factorization.

67368740219664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82762 (or 82756 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 69.

The spelling of 67368740219664 in words is "sixty-seven trillion, three hundred sixty-eight billion, seven hundred forty million, two hundred nineteen thousand, six hundred sixty-four".