220355571850 has 12 divisors (see below), whose sum is σ = 409861363734. Its totient is φ = 88142228720.

The previous prime is 220355571841. The next prime is 220355571853. The reversal of 220355571850 is 58175553022.

It can be written as a sum of positive squares in 3 ways, for example, as 152389517641 + 67966054209 = 390371^2 + 260703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220355571797 and 220355571806.

It is not an unprimeable number, because it can be changed into a prime (220355571853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2203555669 + ... + 2203555768.

Almost surely, 2^220355571850 is an apocalyptic number.

220355571850 is a deficient number, since it is larger than the sum of its proper divisors (189505791884).

220355571850 is a wasteful number, since it uses less digits than its factorization.

220355571850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407111449 (or 4407111444 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 220355571850 in words is "two hundred twenty billion, three hundred fifty-five million, five hundred seventy-one thousand, eight hundred fifty".