68444163855360 has 528 divisors, whose sum is σ = 256714188120000. Its totient is φ = 17291144577024.

The previous prime is 68444163855359. The next prime is 68444163855373. The reversal of 68444163855360 is 6355836144486.

68444163855360 is a `hidden beast` number, since 6 + 8 + 4 + 4 + 4 + 16 + 3 + 8 + 553 + 60 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49218891 + ... + 50590389.

Almost surely, 2^{68444163855360} is an apocalyptic number.

68444163855360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68444163855360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128357094060000).

68444163855360 is an abundant number, since it is smaller than the sum of its proper divisors (188270024264640).

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

68444163855360 is a wasteful number, since it uses less digits than its factorization.

68444163855360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371571 (or 1371528 counting only the distinct ones).

The product of its (nonzero) digits is 199065600, while the sum is 63.

The spelling of 68444163855360 in words is "sixty-eight trillion, four hundred forty-four billion, one hundred sixty-three million, eight hundred fifty-five thousand, three hundred sixty".