388389539266560 has 1080 divisors, whose sum is σ = 1534651548983280. Its totient is φ = 90571259510784.

The previous prime is 388389539266529. The next prime is 388389539266577. The reversal of 388389539266560 is 65662935983883.

388389539266560 is a `hidden beast` number, since 3 + 8 + 8 + 3 + 8 + 9 + 539 + 26 + 6 + 56 + 0 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 388389539266560.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2367324052 + ... + 2367488108.

It is an arithmetic number, because the mean of its divisors is an integer number (1420973656466).

Almost surely, 2^{388389539266560} is an apocalyptic number.

388389539266560 is a gapful number since it is divisible by the number (30) 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 388389539266560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767325774491640).

388389539266560 is an abundant number, since it is smaller than the sum of its proper divisors (1146262009716720).

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

388389539266560 is a wasteful number, since it uses less digits than its factorization.

388389539266560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164141 (or 164099 counting only the distinct ones).

The product of its (nonzero) digits is 12093235200, while the sum is 81.

The spelling of 388389539266560 in words is "three hundred eighty-eight trillion, three hundred eighty-nine billion, five hundred thirty-nine million, two hundred sixty-six thousand, five hundred sixty".