618856265346000 has 640 divisors, whose sum is σ = 2192926447296000. Its totient is φ = 148900218880000.

The previous prime is 618856265345939. The next prime is 618856265346013. The reversal of 618856265346000 is 643562658816.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12676001590 + ... + 12676050410.

It is an arithmetic number, because the mean of its divisors is an integer number (3426447573900).

Almost surely, 2^{618856265346000} is an apocalyptic number.

618856265346000 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 618856265346000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1096463223648000).

618856265346000 is an abundant number, since it is smaller than the sum of its proper divisors (1574070181950000).

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

618856265346000 is a wasteful number, since it uses less digits than its factorization.

618856265346000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50296 (or 50280 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 60.

The spelling of 618856265346000 in words is "six hundred eighteen trillion, eight hundred fifty-six billion, two hundred sixty-five million, three hundred forty-six thousand".