220878537768846 has 192 divisors, whose sum is σ = 519383095470720. Its totient is φ = 67630086881280.

The previous prime is 220878537768827. The next prime is 220878537768901. The reversal of 220878537768846 is 648867735878022.

220878537768846 is a `hidden beast` number, since 2 + 2 + 0 + 8 + 7 + 8 + 537 + 76 + 8 + 8 + 4 + 6 = 666.

220878537768846 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18168829800 + ... + 18168841956.

It is an arithmetic number, because the mean of its divisors is an integer number (2705120288910).

Almost surely, 2^{220878537768846} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220878537768846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259691547735360).

220878537768846 is an abundant number, since it is smaller than the sum of its proper divisors (298504557701874).

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

220878537768846 is a wasteful number, since it uses less digits than its factorization.

220878537768846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20251 (or 20248 counting only the distinct ones).

The product of its (nonzero) digits is 12138577920, while the sum is 81.

The spelling of 220878537768846 in words is "two hundred twenty trillion, eight hundred seventy-eight billion, five hundred thirty-seven million, seven hundred sixty-eight thousand, eight hundred forty-six".