67220277998328 has 1280 divisors, whose sum is σ = 250594477056000. Its totient is φ = 16343228030976.

The previous prime is 67220277998311. The next prime is 67220277998359. The reversal of 67220277998328 is 82389977202276.

67220277998328 is a `hidden beast` number, since 6 + 7 + 2 + 20 + 277 + 9 + 9 + 8 + 328 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 28279459476 + ... + 28279461852.

It is an arithmetic number, because the mean of its divisors is an integer number (195776935200).

Almost surely, 2^{67220277998328} 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 67220277998328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125297238528000).

67220277998328 is an abundant number, since it is smaller than the sum of its proper divisors (183374199057672).

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

67220277998328 is a wasteful number, since it uses less digits than its factorization.

67220277998328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186 (or 3173 counting only the distinct ones).

The product of its (nonzero) digits is 512096256, while the sum is 72.

The spelling of 67220277998328 in words is "sixty-seven trillion, two hundred twenty billion, two hundred seventy-seven million, nine hundred ninety-eight thousand, three hundred twenty-eight".