220337664409 has 2 divisors, whose sum is σ = 220337664410. Its totient is φ = 220337664408.

The previous prime is 220337664341. The next prime is 220337664431. The reversal of 220337664409 is 904466733022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216344056384 + 3993608025 = 465128^2 + 63195^2 .

It is a cyclic number.

It is not a de Polignac number, because 220337664409 - 2¹⁵ = 220337631641 is a prime.

It is not a weakly prime, because it can be changed into another prime (220337664499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110168832204 + 110168832205.

It is an arithmetic number, because the mean of its divisors is an integer number (110168832205).

Almost surely, 2^220337664409 is an apocalyptic number.

It is an amenable number.

220337664409 is a deficient number, since it is larger than the sum of its proper divisors (1).

220337664409 is an equidigital number, since it uses as much as digits as its factorization.

220337664409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 46.

The spelling of 220337664409 in words is "two hundred twenty billion, three hundred thirty-seven million, six hundred sixty-four thousand, four hundred nine".