220063756321 has 2 divisors, whose sum is σ = 220063756322. Its totient is φ = 220063756320.

The previous prime is 220063756291. The next prime is 220063756349. The reversal of 220063756321 is 123657360022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110131059600 + 109932696721 = 331860^2 + 331561^2 .

It is a cyclic number.

It is not a de Polignac number, because 220063756321 - 2¹⁵ = 220063723553 is a prime.

It is a super-2 number, since 2×220063756321² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220069756321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110031878160 + 110031878161.

It is an arithmetic number, because the mean of its divisors is an integer number (110031878161).

Almost surely, 2^220063756321 is an apocalyptic number.

It is an amenable number.

220063756321 is a deficient number, since it is larger than the sum of its proper divisors (1).

220063756321 is an equidigital number, since it uses as much as digits as its factorization.

220063756321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 220063756321 in words is "two hundred twenty billion, sixty-three million, seven hundred fifty-six thousand, three hundred twenty-one".