220879811250 has 450 divisors, whose sum is σ = 722870562843. Its totient is φ = 50247540000.

The previous prime is 220879811239. The next prime is 220879811281. The reversal of 220879811250 is 52118978022.

220879811250 is a `hidden beast` number, since 220 + 87 + 98 + 11 + 250 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 51067412361 + 169812398889 = 225981^2 + 412083^2 .

It is a tau number, because it is divible by the number of its divisors (450).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332325.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 220879811196 and 220879811205.

It is an unprimeable number.

It is a polite number, since it can be written in 224 ways as a sum of consecutive naturals, for example, 1046823645 + ... + 1046823855.

Almost surely, 2^220879811250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220879811250

220879811250 is an abundant number, since it is smaller than the sum of its proper divisors (501990751593).

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

220879811250 is an frugal number, since it uses more digits than its factorization.

220879811250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 220879811250 in words is "two hundred twenty billion, eight hundred seventy-nine million, eight hundred eleven thousand, two hundred fifty".