618971360000 has 1440 divisors, whose sum is σ = 2068887744000. Its totient is φ = 179601408000.

The previous prime is 618971359973. The next prime is 618971360069. The reversal of 618971360000 is 63179816.

It is a self number, because there is not a number n which added to its sum of digits gives 618971360000.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 10491039971 + ... + 10491040029.

It is an arithmetic number, because the mean of its divisors is an integer number (1436727600).

Almost surely, 2^618971360000 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 618971360000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034443872000).

618971360000 is an abundant number, since it is smaller than the sum of its proper divisors (1449916384000).

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

618971360000 is a wasteful number, since it uses less digits than its factorization.

618971360000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 618971360000 in words is "six hundred eighteen billion, nine hundred seventy-one million, three hundred sixty thousand".