220633328449 has 2 divisors, whose sum is σ = 220633328450. Its totient is φ = 220633328448.

The previous prime is 220633328431. The next prime is 220633328483. The reversal of 220633328449 is 944823336022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217846227600 + 2787100849 = 466740^2 + 52793^2 .

It is a cyclic number.

It is not a de Polignac number, because 220633328449 - 2¹⁵ = 220633295681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220633328399 and 220633328408.

It is not a weakly prime, because it can be changed into another prime (220633328849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110316664224 + 110316664225.

It is an arithmetic number, because the mean of its divisors is an integer number (110316664225).

Almost surely, 2^220633328449 is an apocalyptic number.

It is an amenable number.

220633328449 is a deficient number, since it is larger than the sum of its proper divisors (1).

220633328449 is an equidigital number, since it uses as much as digits as its factorization.

220633328449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 46.

The spelling of 220633328449 in words is "two hundred twenty billion, six hundred thirty-three million, three hundred twenty-eight thousand, four hundred forty-nine".