218025651312 has 720 divisors, whose sum is σ = 766533081600. Its totient is φ = 57537672192.

The previous prime is 218025651293. The next prime is 218025651313. The reversal of 218025651312 is 213156520812.

218025651312 is a `hidden beast` number, since 2 + 1 + 80 + 2 + 56 + 513 + 12 = 666.

218025651312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218025651313) by changing a digit.

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 143 ways as a sum of consecutive naturals, for example, 1095606189 + ... + 1095606387.

It is an arithmetic number, because the mean of its divisors is an integer number (1064629280).

Almost surely, 2^218025651312 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 218025651312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383266540800).

218025651312 is an abundant number, since it is smaller than the sum of its proper divisors (548507430288).

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

218025651312 is a wasteful number, since it uses less digits than its factorization.

218025651312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 218025651312 in words is "two hundred eighteen billion, twenty-five million, six hundred fifty-one thousand, three hundred twelve".